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Select and write the most appropriate answer from the given alternatives in each of the following :
If `A = {:((0,1,2),(1,2,3),(3,a,1)):} and A^(-1) = 1/2 {:((1,-1,1),(-8,6,2c),(5,-3,1)):}` then

A

` a = 2, c = - 1/2`

B

`a = 1, c = - 1`

C

`a = - 1, c = 1`

D

` a = 1/2 , c = 1/2`.

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The correct Answer is:
A, B, C
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