Question: 3. (3 points) Suppose A is a 3 x 3 matrix. Which of the following matrices is an elementary matrix E such that th

3. (3 points) Suppose A is a 3 x 3 matrix. Which

3. (3 points) Suppose A is a 3 x 3 matrix. Which of the following matrices is an elementary matrix E such that th operation EA adds 4 x row2 to row3 of A? [1 0 0] (a) E 0 1 0 = 0 4 1 [100] (b) E 0 1 4 = (c) E= [001] [1 0 010 4 0 1 1 0 0 (d) E 0 1 0 0 1 4 [100] (e) E

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