单选题：当变量x的输入值是9时，下面程序的运行结果是：

当变量$$x$$的输入值是9时，下面程序的运行结果是：

#include <iostream>
#include <string>
using namespace std;
int main()
{
int x;
cin>>x;
try
{
cout<<"begin"<<endl;
if(x>100)
{
cout<<"1"<<endl;
throw string("too big.");
}
else
{
cout<<"x="<<x<<endl;
}
cout<<"2"<<endl;
}
catch(string e)
{
cout<<"3:"<<e<<endl;
}
cout<<"end"<<endl;
return 0;
}




A.begin

1

2

end
B.begin

1

3: too big.

2

end
C.begin

x=9

2

end
D.begin

1

3: too big.

end


answer：C