If the lines (x-2)/(1)=(y-4)/(4)=(z-6)/(...

If the lines `(x-2)/(1)=(y-4)/(4)=(z-6)/(k)` and `(x+1)/(3)=(y+3)/(5)=(z+5)/(7)` are coplanar,
then the value of `k` is

A

(a) `7`

B

(b) `3`

C

(c) `-3`

D

(d) `-7`

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The correct Answer is:

A

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