A

P = {3, 6, 9, 12, 15} and Q = {x : x = 3n and 1 ≤ x < 6}

B

P = {5, 25, 125, 625} and Q = {x : x = 5n and 1 ≤ x ≤ 3}

C

P = {a, b, c, d} and Q = {d, c, a, b, e}

D

P = {2, e, 4, 5, g} and Q = {g, 1, 2, 4, 5, 6}