If the Sequence Is Geometric, Find the Common Ratio $$4 , - 12,36 , - 108,324$$

Multiple Choice

If the sequence is geometric, find the common ratio. If the sequence is not geometric, say so.
- $$4 , - 12,36 , - 108,324$$

A) $- 3$
B) $- 16$
C) 3
D) Not geometric