The sum of focal distances of any point on the ellipse with major and minor axes as $2a$ and $2b$ respectively, is equal to

  • A

    $2a$

  • B

    $\frac{{2a}}{b}$

  • C

    $\frac{{2b}}{a}$

  • D

    $\frac{{{b^2}}}{a}$

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