单项选择题
有如下程序：
#include＜iostream＞
using namespace std;
class BASE { public: ～BASE(){cout＜＜"BASE";} };
class DERIVED:public BASE { public: ～DERIVED(){cout＜＜"DERIVED";}
};
int main(){
DERIVEDx;
retum 0;
}
执行后的输出结果是（）
A．BASE
B．DERIVED
C．BASEDERIVED
D．DERIVEDBASE