(单选题)10: 能将程序补充完整的选项是_______。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 args[]){
Person p=new Person();
A: i=m
B: i=b
C: i=p.a
D: i=p.change(50)
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