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If `e and l` are respectively the eccentricity and length of latus rectum of hyperbola `x^2/a^2-y^2/b^2=1` such that `e^2=11/14l`. If `e' & l'` are the eccentricity and latus rectum of the conjugate hyperbola and `(e')^2 =11/8 l'` then the value of `77a+44b` is

A

130

B

140

C

145

D

155

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