Identify the Planes That Are Perpendicular $10 x - y - z = 6 , - 9 x + y - 19 z = 2$

Multiple Choice

Identify the planes that are perpendicular.

A) $10 x - y - z = 6 , - 9 x + y - 19 z = 2$
B) $x - 10 y = 6 , - 9 x - 19 z = 2$
C) $x + 10 y = 6 , - 9 x - y - 19 z = 2$
D) $x + 10 y = 6 , - 9 x - 19 z = 2$
E) $x + 10 y - z = 6 , - 9 x - y - 19 z = 2$