Find a General Term an for the Geometric Sequence $$a _ { 1 } = \frac { 1 } { 5 } , r = - 5$$

Multiple Choice

Find a general term an for the geometric sequence.
- $$a _ { 1 } = \frac { 1 } { 5 } , r = - 5$$

A) $a _ { n } = \left( \frac { 1 } { 5 } \right) ^ { n - 1 } - \frac { 6 } { 25 }$
B) $a _ { n } = \frac { 1 } { 5 } - \frac { 6 } { 25 } ( n - 1 )$
C) $a _ { n } = \frac { 1 } { 5 } \cdot ( - 5 ) ^ { n - 1 }$
D) $a _ { n } = \frac { 1 } { 5 } - \frac { 1 } { 5 } ( n - 1 )$