Let Set C is set of Natural numbers less than 15 and Set D is a set of multiples of 3 less than or equal to 18. Find C Ո D.

A.{3, 6, 9, 12, 15}
B.{3, 6, 9, 12, 15, 18}
C.{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 18}
D.{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13}​