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Q)

The eccentriciy of an ellipse whose centre is at the origin is $\frac{1}{2}$. If one of its directrices is $x = -4$, then the equation of the normal to it at $(1, \frac{3}{2})$ is


( A ) $ x + 2y = 4$
( B ) $2y - x = 2$
( C ) $4x + 2y= 7$
( D ) $4x - 2y = 1$

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