If n is the set of natural numbers that are factors of 24, choose the selection below that currently shows this set in roster form.

a) {1, 2, 4, 8, 16, 20, 24}
b) {2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24}
c) {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24}***
d) {1, 2, 3, 4, 6, 8, 12, 24}

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