algebra 1

Given sets X = {0, 1, 2, 4}, Y = {0, 2, 4, 6, 8}, and Z = {5, 6, 10}, which of the
following statements is false ?
[A] 2�¸X [B] 6�¸Y [C] 10�¸Z [D] 2∉Y [E] None of these

i think it is C can you tell me if i am right

thanks in advance

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