4. If N is the set of natural numbers that are factors of 16, choose the selection below that correctly shows this set in roster form.

A. {1, 2, 4, 8, 16)
B. {2, 4, 6, 8, 10, 12, 14, 16}
C. {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
D. {2, 4, 8)

5. Suppose U= {1, 2, 3, 4, 5, 6, 7, 8} is the universal set, and P = {1, 3, 5, 7}. What is p'? (1
point)
A. {2, 4, 6, 8}
B. {1, 2, 3, 4, 5, 6, 7, 8}
C. {1,3,5,7}
D. {1,3,5,7,8}