Question

[3.02] If C = {all numbers from 1 to 18} and D = {numbers divisible by 6 from 1 to 12}, what is CintersectionD?
Select one:
a. {all numbers from 1 to 18}
b. {1, 2, 3, 4, 5, 7, 8, 9, 10, 11, 13, 14, 15, 16, 17}
c. {6, 12, 18}
d. {6, 12}


I think the answer is D. but i am not sure!