She noted the following matrices. 1
II
IV
1 0
0
0
-1
-1
2
7
1
1 -2
-7
1 1
0-1
0
1
0-1
1
1
2
2
-3
0 1 -5 -16
0 0 22 66
0 1 0-1
0 0 1 3
0 0 1
3
2
37
In which order should the matrices be arranged when solving the system from start to finish?
O I, IV, III, 11
O II, III, IV, 1
O II, IV, I, III
O IV, II, III, I