The eccentricity of an ellipse whose cen...

The eccentricity of an ellipse whose center is at the origin is 1/2. If one of its directrices is x = -4, then the equation of the normal to it at (1,3/2) is

A

`x+2y = 4`

B

`2y - x= 2`

C

`4x - 2y =1`

D

`4x + 2y = 7`

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The correct Answer is:

C

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