class One { <br /> void foo() {} <br /> } <br /> class Two extends One { <br />  //insert method here <br /> } <br /> Which three methods, inserted individually at line 14, will correctly complete class Two?()
A、 int foo() { /* more code here */ }
B、 void foo() { /* more code here */ }
C、 public void foo() { /* more code here */ }
D、 private void foo() { /* more code here */ }
E、 protected void foo() { /* more code here */ }