If A= [(0,1,2),(1,2,3),(3,1,1)], then th...

If `A= [(0,1,2),(1,2,3),(3,1,1)]`, then the sum of all the diagonal entires of `A^(-1)` is

A

2

B

3

C

`-3`

D

4

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The correct Answer is:

D

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