The equation of the ellipse whose latus rectum is $8$ and whose eccentricity is $\frac{1}{{\sqrt 2 }}$, referred to the principal axes of coordinates, is

  • A

    $\frac{{{x^2}}}{{18}} + \frac{{{y^2}}}{{32}} = 1$

  • B

    $\frac{{{x^2}}}{8} + \frac{{{y^2}}}{9} = 1$

  • C

    $\frac{{{x^2}}}{{64}} + \frac{{{y^2}}}{{32}} = 1$

  • D

    $\frac{{{x^2}}}{{16}} + \frac{{{y^2}}}{{24}} = 1$

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  • [KVPY 2020]