If (a, b, c) is the image of the point (1, 2, -3) in the line ${{x + 1} \over 2} = {{y - 3} \over { - 2}} = {z \over { - 1}}$, then a + b + c is :

Question

If (a, b, c) is the image of the point (1, 2, -3) in

the line ${{x + 1} \over 2} = {{y - 3} \over { - 2}} = {z \over { - 1}}$, then a + b + c is :

-1

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