Which of the following statement is true ?
(A) {2, 3, 4, 5} and {3, 6} are disjoint sets.
(B) {a, e, i, o, u} and {a, b, c, d) are disjoint sets.
(C) {2, 6, 10, 14} and {3, 7, 11, 15} are disjoint sets
(D) {2, 7, 10} and {3, 7, 11} are disjoint sets.