JAVA问题03

QUESTION NO: 3
1. class A {
2. protected int method1(int a, int b) { return 0; }
3. }
Which two are valid in a class that extends class A? (Choose two)
A. public int method1(int a, int b) { return 0; }
B. private int method1(int a, int b) { return 0; }
C. private int method1(int a, long b) { return 0; }
D. public short method1(int a, int b) { return 0; }
E. static protected int method1(int a, int b) { return 0; }
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BC不能选了吧
C是为什么啊

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