Find the Common Ratio R for the Given Infinite Geometric $1 , - 3,9 , - 27,81 , \ldots$

Multiple Choice

Find the common ratio r for the given infinite geometric sequence.
- $1 , - 3,9 , - 27,81 , \ldots$

A) $- 4$
B) $- \frac { 1 } { 3 }$
C) 3
D) $- 3$