#include<bits/stdc++.h>
using namespace std;
const int maxn=100000+10;
struct yal{
vector<pair<int,int>>w,dp;
int u,v;
int getad(int fu){
int ret=(u^v^fu);
return ret;
}
};
yal alled[maxn];
vector<int>adj[maxn],fake,bal[maxn],khod[maxn];
int fn,n,m,res[maxn],vis[maxn],sz[maxn],azb[maxn],high[maxn],timea,q,par[maxn];
pair<int,int>stf[maxn];
int kaf=(1<<18);
struct segment{
pair<int,int> seg[(1<<19)];
vector<pair<int,pair<int,int>>>v;
void back(int len){
while((int)v.size()>len){
seg[v.back().first]=v.back().second;
v.pop_back();
}
}
void upd(int i,int l,int r,int tl,int tr,pair<int,int> w){
if(l>r||l>tr||r<tl||tl>tr){
return ;
}
if(l>=tl&&r<=tr){
v.push_back(make_pair(i,seg[i]));
seg[i]=w;
return ;
}
int m=(l+r)>>1;
upd((i<<1),l,m,tl,tr,w);
upd((i<<1)^1,m+1,r,tl,tr,w);
return ;
}
pair<int,int> pors(int i){
if(i==0){
return make_pair(0,0);
}
pair<int,int> ret=pors((i>>1));
ret=max(ret,seg[i]);
return ret;
}
}seg1,seg2;
int now=1;
void dfs(int u,int para=0,int az=0){
fake.push_back(u);
high[u]=high[para]+1;
azb[u]=az;
sz[u]=1;
if(para==0){
high[u]=1;
timea=0;
}
else{
sz[u]+=(int)alled[par[u]].w.size();
}
timea++;
stf[u].first=timea;
for(auto xx:adj[u]){
int x=alled[xx].getad(u);
if(vis[x]==1||x==para){
continue;
}
par[x]=xx;
if(para==0){
bal[x].clear();
dfs(x,u,x);
}
else{
dfs(x,u,az);
}
sz[u]+=sz[x];
}
stf[u].second=timea;
}
int finds(int u,int para=0){
for(auto xx:adj[u]){
int x=alled[xx].getad(u);
if(vis[x]==0&&x!=para&&sz[x]*2>fn){
return finds(x,u);
}
}
return u;
}
void calalllink(int u,int para=0){
now++;
int fl1=(int)seg1.v.size(),fl2=(int)seg2.v.size();
if(para==0){
seg1.upd(1,0,kaf-1,1,m+5,make_pair(now,-2));
seg2.upd(1,0,kaf-1,1,m+5,make_pair(now,-2));
}
else{
for(int i=0;i<(int)alled[par[u]].w.size();i++){
alled[par[u]].dp[i].first=seg1.pors(kaf+alled[par[u]].w[i].first).second;
alled[par[u]].dp[i].second=seg2.pors(kaf+alled[par[u]].w[i].second).second;
if(alled[par[u]].dp[i].first==-2){
alled[par[u]].dp[i].first=alled[par[u]].w[i].first;
}
if(alled[par[u]].dp[i].second==-2){
alled[par[u]].dp[i].second=alled[par[u]].w[i].second;
}
}
if((int)alled[par[u]].w.size()>0){
seg1.upd(1,0,kaf-1,1,alled[par[u]].w[0].first-1,make_pair(now,alled[par[u]].dp[0].first));
seg2.upd(1,0,kaf-1,alled[par[u]].w.back().second+1,m+5,make_pair(now,alled[par[u]].dp.back().second));
seg2.upd(1,0,kaf-1,1,alled[par[u]].w[0].first-1,make_pair(now,-1));
seg1.upd(1,0,kaf-1,alled[par[u]].w.back().second+1,m+5,make_pair(now,m+10));
for(int i=1;i<(int)alled[par[u]].w.size();i++){
seg1.upd(1,0,kaf-1,alled[par[u]].w[i-1].second+1,alled[par[u]].w[i].first-1,make_pair(now,alled[par[u]].dp[i].first));
seg2.upd(1,0,kaf-1,alled[par[u]].w[i-1].second+1,alled[par[u]].w[i].first-1,make_pair(now,alled[par[u]].dp[i-1].second));
}
}
else{
seg1.upd(1,0,kaf-1,1,m+5,make_pair(now,m+10));
seg2.upd(1,0,kaf-1,1,m+5,make_pair(now,-1));
}
}
for(auto xx:adj[u]){
int x=alled[xx].getad(u);
if(vis[x]==0&&x!=para){
calalllink(x,u);
}
}
seg1.back(fl1);
seg2.back(fl2);
}
void solve(int u){
dfs(u);
fake.clear();
fn=sz[u];
int v=finds(u);
fake.clear();
dfs(v);
now=1;
calalllink(v);
for(auto x:fake){
if(x==v){
khod[v].push_back(0);
continue;
}
if(alled[par[x]].w.size()==0){
continue;
}
int ff=alled[par[x]].dp[0].first;
if(ff>m+2){
continue;
}
khod[v].push_back(ff);
bal[azb[x]].push_back(ff);
}
sort(khod[v].begin(),khod[v].end());
for(auto xx:adj[v]){
int x=alled[xx].getad(v);
if(vis[x]==0){
sort(bal[x].begin(),bal[x].end());
}
}
for(auto x:fake){
if(x==v){
res[x]+=khod[v].size();
continue;
}
if((int)alled[par[x]].w.size()==0){
continue;
}
int ff=alled[par[x]].dp.back().second;
int p=upper_bound(khod[v].begin(),khod[v].end(),ff)-khod[v].begin();
p--;
res[x]+=p+1;
p=upper_bound(bal[azb[x]].begin(),bal[azb[x]].end(),ff)-bal[azb[x]].begin();
p--;
res[x]-=p+1;
}
vis[v]=1;
for(auto xx:adj[v]){
int x=alled[xx].getad(v);
if(vis[x]==0){
solve(x);
}
}
}
int main(){
ios::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
// freopen("inp.txt","r",stdin);
// freopen("out.txt","w",stdout);
cin>>n>>m>>q;
for(int i=1;i<=n-1;i++){
cin>>alled[i].u>>alled[i].v;
adj[alled[i].u].push_back(i);
adj[alled[i].v].push_back(i);
}
for(int i=1;i<=m;i++){
int u;
cin>>u;
if((int)alled[u].w.size()==0||alled[u].w.back().second!=-1){
alled[u].w.push_back(make_pair(i,-1));
}
else{
alled[u].w.back().second=i;
}
}
for(int i=1;i<n;i++){
if((int)alled[i].w.size()>0&&alled[i].w.back().second==-1){
alled[i].w.back().second=m+1;
}
alled[i].dp.resize((int)alled[i].w.size());
}
solve(1);
for(int i=0;i<q;i++){
int u;
cin>>u;
cout<<res[u]<<"\n";
}
}
