Given a method with the following signature, which of the following are valid ways of calling the method?

public static void mystery(int a, int b)

A. method(5, 2);

B. mystery(7, 1);

C. mystery(1, 2, 3);

D. mystery(5, 2.1);

E. int a = 5; int b = 2; mystery(a, b);

F. int a = 5; mystery(a, 8);

G. int a = 5; mystery(a, 8.0);

H. double a = 2.0; double b = 5.5; mystery(a, b);