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jbjnbbljb

answer:

b.

step-by-step explanation:

first we have two matrix, that is a and b, we calculate c = ab. each entry of c will be the dot product of a row of a and a column in b. the dot product is calculated between the i of row a and the j column of b. thus, if c = ab, we have that , where n is a number.

after that you multiply the result by 2, a real number called a scalar. now, each entry in the matrix is multiplied by the scalar (two).