A normal at P(x, y) on a curve meets the X-axis at Q and N is the foot of the ordinate at P. If NQ =X(1+y) NO = A then the equation of curve given that it passes through the point (3, 1)is 1+ x (B) x+ 2y2 = 11 (A) (C)x 5y2 = 4 x2-y2 = 8 (D) None of these