Find the number of subsets of A xx B, if...

Find the number of subsets of `A xx B`, if n(A)=2 and n(B)=4
The following are the steps involved in solving the above problem. Arrange them in sequential order (A) The number of elemetns in `A xxB` is `4xx2=8`.
(B) The number of subsets of a set with n elements =`2^(n)`
(C) Given `n(A)=2` and `n(B)=4`.
(D) `therefore` Required number of subsets is `2^(8)=256`.

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