A. a, b, c

B. b, c, a

C. c, a, b

D. b, a, c

The pole of the line y=x+2 e with respect to the ellipse x^{2}+4y^{2}-2x-6y-10=0 is

The equation of ellipse whose focus is (0, √a^{2}-b^{2}), directrix is y=a^{2}/√a^{2}-b^{2 }and eccentricity is √a^{2}-b^{2}/a is