Which of the following gives the correct matrix for this system of equations in reduced row echelon form? x2 +2x2 +xz-4x4 -3 3x₂ + 4x = 4 -4x2 +4x2 +4x3 +3xg=3 1 2 -1 -4 3 a) 0 0 3 0 4 4 00 0-29 -1 by O -12 1-4 3 0304 4 73 11 000 3 3 10-10 c) 0 0 1 0 0 0001 d) 0 0 10 100 ㅇㅇ-ㅎ 001 볶음 3 49 87 29 112 87 1 29 / 3 13 12 12 - 23

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