1. public class Blip { <br /> 2. protected int blipvert(int x) { return 0; } <br /> 3. } <br /> 4. class Vert extends Blip { <br /> 5. // insert code here <br /> 6. } <br /> Which five methods, inserted independently at line 5, will compile?()<br />  
A、 public int blipvert(int x) { return 0; }
B、 private int blipvert(int x) { return 0; }
C、 private int blipvert(long x) { return 0; }
D、 protected long blipvert(int x, int y) { return 0; }
E、 protected int blipvert(long x) { return 0; }
F、 protected long blipvert(long x) { return 0; }
H、protected long blipvert(int x) { return 0; }