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The line 3x-y+k=0 touches the circle x^(...

The line `3x-y+k=0` touches the circle `x^(2)+y^(2)+4x-6y+3=0`. If `k_(1), k_(2) (k_(1) lt k_(2))` are the two values of k, then the equation of the chord of contact of the point `(k_(1), k_(2))` with respect to the given circle is

A

`19 x+y-18=0`

B

`x+19y-3=0`

C

`x+16y-56 =0`

D

`20x+18y-7=0`

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The correct Answer is:
C
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