Find a Nonzero Vector Orthogonal to the Plane Through the Points

Multiple Choice

Find a nonzero vector orthogonal to the plane through the points P, Q, and R. $P ( 3,0,0 ) , Q ( 5,6,0 ) , R ( 0,6,3 )$

A) $\mathbf { i } - 6 \mathbf { j } + 5 \mathbf { k }$
B) $\mathbf { i } - 5 \mathbf { j } + 6 \mathbf { k }$
C) $18 \mathbf { i } - 6 \mathbf { j } + 30 \mathbf { k }$
D) $- 5 \mathbf { i } + \mathbf { j } + 6 \mathbf { k }$
E) None of these