If A = {5, 6, 7...} and B = {x | 2n + 4, n e {2, 3, 4, 5}}, what is the roster for B? Enter a, b, c, d, or e. a. 6, 9, 10, 12 b. -2, 4, 6, 8 C. 8, 10, 12, 14 d. 5, 6, 7, 8 e. none of the above