Identify the Quadric Surface by Name

Multiple Choice

Identify the quadric surface by name. Find and describe the xy-, xz-, and yz-traces, when they exist.
-16 - 16 - z = 0

A) Elliptic cone; xz-trace: 16x² - z = 0 (hyperbola) ; yz-trace: 16y² + z = 0 (hyperbola)
B) Elliptic paraboloid; xz-trace: 16x² - z = 0 (hyperbola) ; yz-trace: 16y² + z = 0 (hyperbola)
C) Elliptic paraboloid; xz-trace: 16x² - z = 0 (parabola) ; yz-trace: 16y² + z = 0 (parabola)
D) Hyperbolic paraboloid; xz-trace: 16x² - z = 0 (parabola) ; yz-trace: 16 y² + z = 0 (parabola)