Let A = (ai,j) be a 3 × 5 matrix and let B = (bi,j) be a 5 × 4 Which of the following is the (2,2) entry of AB? O O a1,2 + b1,4 + a2,2b2,4 + a3,203,4 a2,1b1,2 + a2,2b2,2 + a2,3b3,2 + a2,4b4,2 + a2,5b5,2. a2,1b1,2 + a2,2b2,2 + A2,3b3,2 + a2,4b4,2. a1,2b1,2 + a2,3b2,3 + a3,3b3,3 + a4,3b4,3.

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A: Answer:  d. 6

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A: See the attachment

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