![](https://cos-cdn.shuashuati.com/pipixue-wap/2020-1230-1107-56/ti_inject-812ce.png)
在//point x处的哪个声明是合法的? ( ) class Person { private int a; public int change (int m){ return m; } } public class Teacher extends Person{ public int b; public static void main (string arg[]){ Person p= new Person(); Teacher t= new Teacher (); int i; //point x } }