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() DERIVED x; return 0;
执行后的输出结果是( )。

A．BASE

B．DERIVED

C．BASEDERIVED

D．DERIVEDBASE