Determine Whether the Sequence Is Geometric $- 2 , - 6 , - 18 , - 54 , \ldots$

Multiple Choice

Determine whether the sequence is geometric. If so, find the common ratio. $- 2 , - 6 , - 18 , - 54 , \ldots$

A) 3
B) $- 2$
C) $\frac { 1 } { 3 }$
D) $- 3$
E) not geometric