Question:`x in AuuB` হলে নিচের কোনটি সঠিক? 

A `xinA` অথবা `x !in B` 
B `x in A` অথবা `x in B` 
C `x !in A` এবং `x in B` 
D `x in A` এবং `x in B` 

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B 

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Irin Moni

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