下面是有关于类继承父类构造函数的描述，其中正确的是 ( )

A．0.75MB
B．1.5MB
C．3.0MB
D．2.0MB

A．public class X implements Runable public void run()．．．，．，
B．public class X implements Thread public void run()．．．．．．
C．public class X implements Thread public int run()……
D．public class X implements Runable protected void run()．．．．．