Solve the Problem $m$ So That $x + 4$ Is a Factor Of

Multiple Choice

Solve the problem.
-Find $m$ so that $x + 4$ is a factor of $5 x ^ { 3 } + 18 x ^ { 2 } + m x + 16$

A) $m = - 4$
B) $m = 4$
C) $m = - 16$
D) $m = 16$