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Two subsets A and B of a set containing ...

Two subsets A and B of a set containing n elements are chosen at random. The probability that `A sube B` is

A

`(1)/(2)`

B

`(2^n)/(n!)`

C

`((2)/(3))^n`

D

`((3)/(4))^n`

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The correct Answer is:
D
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