下面程序的运行结果是( )。#include＜iostream.h＞class Sample{int x, y;public:Sample() { x=y=0; }Sample(int a, int b) { x=a; y=b; }void (lisp(){cout＜＜"x="＜＜x＜＜",y="＜＜y＜＜end1;}};void main(){Sample s(2,3), *p=&s;p-＞disp();}

A．x=1, y=2

B．x=2, y=4

C．x=2, y=3

D．x=4, y=3