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If the line through the points A(k,1,-1)...

If the line through the points `A(k,1,-1) and B (2k,0,2)` is perpendicular to the line through the points B and `C(2+2k,k,1)`, then what is the value of k?

A

`-1`

B

`1`

C

`-3`

D

3

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The correct Answer is:
D
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