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If A=[[1,2,-1],[3,-2,5]],then R1 harr R2...

If `A=[[1,2,-1],[3,-2,5]],then R_1 harr R_2 and C_1 rarr C_1 + 2C_3` gives

A

`[[-13,2,-5],[-1,2,-1]]`

B

`[[-1,-2,-1],[13,-2,5]]`

C

`[[13,-2,5],[-1,2,-1]]`

D

`[[2,-13,-5],[2,-1,-1]]`

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