Simplify Assume That Variables in the Exponent Represent Nonzero Integers $\left( x ^ { 9 b + 2 } \right) ^ { 5 }$

Multiple Choice

Simplify. Assume that variables in the exponent represent nonzero integers and that all other variables are not 0.
- $\left( x ^ { 9 b + 2 } \right) ^ { 5 }$

A) $x ^ { 9 b + 10 }$
B) $5 x ^ { 9 b + 2 }$
C) $\mathrm { x } ^ { 9 b + 7 }$
D) $x ^ { 45 b } + 10$