单项选择题

有如下程序:
#include<iostream>
using namespace std;
class MyClass
public:
MyClass()++count;
~MyClass()--count;
static int getCount()return count;
private:
static int count;

int MyClass::count=0;
int main()
MyClass obj;
Cout<<obj.getCount();
MyClass *ptr=new MyClass;
cout<<MyClass::getCount();
delete ptr;
cout<<MyClass::getCount();
return 0;
程序的输出结果是( )。

A.121
B.232
C.221
D.122