The product of the lengths of perpendiculars from the foci on any tangent to the ellipse $3x^2 + 5y^2 = 1$, is

  • A

    $\frac{1}{5}$

  • B

    $\frac{3}{5}$

  • C

    $\frac{5}{3}$

  • D

    $5$

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