class Student{String name;public void show(){System.out.println("姓名："+name);}}下面定义Student类的构造方法正确的是（）。
选项：

A:public void Student(){name = "张三";}
B:public Student(){name = "张三";}
C:public void Student(String myName){name = myName;}
D:public Student(String myName){name = myName;}