If A and B two sets containing 2 elements and 4 elements, respectively. Then, the number of subsets of `A xx B` having 3 or more elements, is

If A and B two sets containing 2 elements and 4 elements, respectively. Then, the number of subsets of `A xx B` having 3 or more elements, is
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If A and B two sets containing 2 elements and 4 elements, respectively. Then, the number of subsets of `A xx B` ... `256` B. `220` C. `219` D. `211`
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