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An ellipse passes through a focus of the hyperbola `x^2/9 - y^2/16 = 1` and its major and minor axes coincide with the transverse and conjugate axes of the hyperbola and the product of eccentricities of ellipse and hyperbola is 1. If `l and l\'` be the length of semi latera recta of ellipse and hyperbola, then `ll\'=` (A) `144/15` (B) `256/15` (C) `225/12` (D) none of these

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