Which three are valid method signatures in an interface?

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✪ Choose the correct option.

Which three are valid method signatures in an interface?

  1. private int getArea();
  2. public float getVol(float x);
  3. public void main(String [] args);
  4. public static void main(String [] args);
  5. boolean setFlag(Boolean [] test);

A. 1 and 2
B. 2,3 and 5
C. 3,4 and 5
D. 2 and 4