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Suppose that A = {2, 4, 6}, B = {2, 6}, C = {4, 6}, and D = {4, 6, 8}. Identify the pairs of sets in which one is a subset of the other (in any order).
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Set B is the subset of A.
Set C is the subset of A.
B and C are subsets of D.
Set B is equal to set C.