If the Sequence Is Geometric, Find the Common Ratio R $1024,-256,64,-16, \ldots$

Multiple Choice

If the sequence is geometric, find the common ratio r. If the sequence is not geometric, say so
- $1024,-256,64,-16, \ldots$

A) -4

B) $\frac{1}{4}$

C) $-\frac{1}{4}$

D) $-\frac{1}{5}$