Which of the following sets is closed under multiplication?

A. {0, 1}

B. {1, 2}

C. {0, 1, 2}

D. None of the sets are closed under multiplication.

B. {1,2} because they are both whole numbers 0 is not one.

(Proof: Whole Numbers: This set is closed only under addition and multiplication. Integers: This set is closed only under addition, subtraction, and multiplication. Rational Numbers: This set is closed under addition, subtraction, multiplication, and division (with the exception of division by 0)"

(o, 1)

Step-by-step explanation:

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