若有以下程序#include ＜iostream＞using namespace std;class A { private:int a;public: A(int i) { a=i; } void disp() { cout＜＜a＜＜","; } }; class B { private: int b; public: B(int j) { b=j;} void disp() { cout＜＜b＜＜","; } }; class C: public B,public A { private:int c;public: C(int k):A(k-2),B(k+2) { c=k; } void disp() { A::disp(); B::disp(); cout＜＜c＜＜end1;} }; int main() {C obj(10);obj.disp();return 0; } 程序执行后的输出结果是
A．10,10,10
B．10,12,14
C．8,10,12
D．8,12,10
