If the co-ordinates of the vertices A,B,...

If the co-ordinates of the vertices A,B,C of the triangle ABC are `(-4, 2) , (12,-2) and (8,6)` respectively, then`angle B=`

A

`tan ^(-1)""(-(6)/7)`

B

`tan ^(-1)""((6)/(7))`

C

`tan ^(-1)""(-(7)/(6))`

D

` tan ^(-1) ""((7)/(6))`

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The correct Answer is:

D

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