Find the Sum of the Convergent Series $\sum _ { n = 0 } ^ { \infty } 9 \left( \frac { 8 } { 9 } \right) ^ { n }$

Multiple Choice

Find the sum of the convergent series. $\sum _ { n = 0 } ^ { \infty } 9 \left( \frac { 8 } { 9 } \right) ^ { n }$

A) $81$
B) $63$
C) $72$
D) 9
E) 8