A straight line parallel to the line 2x ...

A straight line parallel to the line `2x - y + 5=0` is also a tangent to the curve `y ^(2) = 4x + 5.` Then the point of contact is a)`(2,1)` b)`(-1,1)` c)`(1,3)` d)`(3,4)`

A

`(2,1)`

B

`(-1,1)`

C

`(1,3)`

D

`(3,4)`

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The correct Answer is:

B

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