Find $a _ { 1 }$ And and R for a Geometric Sequence

Multiple Choice

Find $a _ { 1 }$ and and r for a geometric sequence { $\left\{ a _ { n } \right\}$ } from the given information.
- $a _ { 2 } = - 6$ and $a _ { 6 } = - \frac { 243 } { 128 }$

A) $a _ { 1 } = 8$ and $r = \frac { 3 } { 4 }$
B) $a _ { 1 } = - \frac { 32 } { 3 }$ and $r = - \frac { 3 } { 4 }$
C) $a _ { 1 } = 8$ and $r = - \frac { 3 } { 4 }$
D) $a _ { 1 } = 8$ and $r = - \frac { 4 } { 3 }$