9. Which of the following is a valid JUnit test? A. public void testMax() { C. E. } @Test assertEquals(6, Math.max (5, 6)); @Test (6) public void testMax() { Math.max (5, 6); } public void testMax() { Math.max (5, 6) == } @Test (6); B. D. @Test public void testMax() { } assertEquals(6, Math.max(5, 6)); public void testMax() { System.out.println(Math.max (5, 6) == 6); }