A six-sided number cube with faces numbered 1, 2, 3, 4, 5, and 6 is rolled.    Which events are mutually exclusive? 	 	   A. 	rolling a 5, rolling a prime number 	   B. 	rolling a 1, rolling a even number 	   C. 	rolling a 3, rolling an odd number 	   D. 	rolling a 2, rolling a prime number