The tangent to the curve x^2+y^2-2x-3=0 ...

The tangent to the curve `x^2+y^2-2x-3=0` is parallel to X-axis at the points: a)`(2,pmsqrt3)` b)`(1,pm2)` c)`(pm1,2)` d)`(pm3,0)`

A

`(2,pmsqrt3)`

B

`(1,pm2)`

C

`(pm1,2)`

D

`(pm3,0)`

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The correct Answer is:

B

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