Which is the equation of a hyperbola with directrices at y = ±2 and foci at (0, 4) and (0, −4)?

A) x squared over 8 minus y squared over 16 equals 1
B) y squared over 16 minus x squared over 8 equals 1
C) x squared over 8 minus y squared over 8 equals 1
D) y squared over 8 minus x squared over 8 equals 1

(10 points) 1. cone 2. rectangle 3. triangle 4. circle 5. cylinder a. perpendicular cross section of a pyramid b. perpendicular cross section of a cylinder c. parallel cross section of a sphere d. shape created when a rectangle is rotated about the y-axis e. shape created when a right triangle is rotated about the y-axis