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Let X={1,2,3,4,5} . The number of differ...

Let `X={1,2,3,4,5}` . The number of different ordered pairs (Y, Z) that can be formed such that `YsubeX,ZsubeXandYcapZ` is empty is___

A

`2^5`

B

`5^3`

C

`5^2`

D

`3^5`

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