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If the normal at any point P on the elli...

If the normal at any point `P` on the ellipse `x^2/a^2 + y^2/b^2 = 1` cuts the major and minor axes in `L and M` respectively and if `C` is the centre of the ellipse , then `a^2\ CL^2 + b^2\ CM^2` is equal to
(A) `(a-b)` (B) `(a^2 - b^2)^2` (C) `(a+b)` (D) `(a^2 + b^2)`

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