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.
O{1, 2, 4, 8, 16)
O (2, 4, 6, 8, 10, 12, 14, 16}
O {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16}
O {2, 4, 8)