The line (x-2)/(1)=(y-3)/(1)=(z-4)/(-k) ...

The line `(x-2)/(1)=(y-3)/(1)=(z-4)/(-k)` and `(x-1)/(k)=(y-4)/(2)=(z-5)/(1)` are coplanar if

A

`k =1 or -1`

B

`k = 0 or - 3`

C

`k = 3 or -3`

D

`k = 0 or -1 `

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The correct Answer is:

B

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