If A=|[alpha,2], [2,alpha]| and |A|^3=...

If `A=|[alpha,2], [2,alpha]| and |A|^3=125` , then the value of `alpha` is a.`+-1` b. `+-2` c. `+-3` d. `+-5`

A

`pm1`

B

`pm2`

C

`pm3`

D

`pm5`

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The correct Answer is:

C

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