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If M = {x | x is a multiple of 5} : N =...

If M = {x | x is a multiple of 5} :
N = {x | x is a multiple of 7}, then M n N =

A

{x | x is a multiple of 5}

B

{x | x is a multiple of 7}

C

{x | x is a multiple of 35}

D

{x | x is a multiple of 70}

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