Compare the the planes below to the plane $-3 x+ y - 3 z = 5$. Match the letter corresponding to the words parallel, orthogonal, or "neither" which describes the relation of the two planes.

 1. $- x - 3 y = -3$
 2. $-9 x+ 3 y - 9 z = 0$
 3. $-3 x+ 2 y - 3 z = 2$

A. orthogonal
B. parallel
C. neither