Find the General Term, An, of the Given Geometric Sequence $2 , \frac { 1 } { 4 } , \frac { 1 } { 32 } , \ldots$

Multiple Choice

Find the general term, an, of the given geometric sequence.
- $2 , \frac { 1 } { 4 } , \frac { 1 } { 32 } , \ldots$

A) $a _ { n } = 2 \left( \frac { 1 } { 8 } \right) ^ { n - 1 }$
B) $a _ { n } = 2 + \frac { 1 } { 8 } ( n - 1 )$
C) $a _ { n } = 2 ^ { n - 1 } - \frac { 7 } { 4 }$
D) $a _ { n } = 2 - \frac { 7 } { 4 } ( n - 1 )$