যদি Q = {x:x, 9 এর গুণনিয়ক সমূহ} হলে নিচের কোনটি সঠিক?

A Q = {1,3,9}

B Q = {1,3}

C Q = {3,9}

D Q = {3,9,18}

Solution

Correct Answer: Option A

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