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The equation of the line parallel to x-a...

The equation of the line parallel to x-axis and tangent to
the curve `y = (1)/(x^(2) + 2x + 5)` is

A

`y = (1)/(4)`

B

y = 4

C

`y = (1)/(2)`

D

y = 0

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The correct Answer is:
A
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