Let A be the vertex and L be the length of the latus rectum of the parabola, y²−2y−4x−7=0. The equation of the parabola with a as vertex 2 L the length of the latus rectum and axis at right angles that of the given curve is
A. x²+4x+8y−4=0
B. x²+4x+8y−12=0
C. x²+4x−8y+12=0
D. x²+8x−4y+8=0
