If a number of ellipse be described having the same major axis $2a$  but a variable minor axis then the tangents at the ends of their latera recta pass through fixed points which can be

  • A

    $(0, a)$

  • B

    $(0, - a)$

  • C

    $(0, 0)$

  • D

    both $(A)$ and $(B)$

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