单选题：Given code below:

Given code below:
```Java
package my;
class My { ... }
```
Which way below is correct to run the program? @[D](2)

A. Put My.class at any director, and execute "java My" at that directory.
B. Put My.class at any director, and execute "java my.My" at that directory.
C. Put My.class at a directory named my, and execute "java My" at that directory.
D. Put My.class at a directory named my, and execute "java my.My" at the parent directory of that "my" directory.





A.Put My.class at any director, and execute "java My" at that directory.
B.Put My.class at any director, and execute "java my.My" at that directory.
C.Put My.class at a directory named my, and execute "java My" at that directory.
D.Put My.class at a directory named my, and execute "java my.My" at the parent directory of that "my" directory.


答案：D