A(int i)a=i;void disp()cout<<a<<",";; class Bprivate: int b; public: B(int j)b=j;void disp()cout<<b<<",";; class C:public B,public Aprivate: int c; public: C(int k):A(k-2),B(k+2)c=k;void disp()cout<<c<<endl;; int main() C obj(10); obj.disp(); return 0;程序执行后的输出结果是( )。10,10,10