Simplify the Rational Expression A) $\frac { ( 3 x ) \left( 3 - 8 x ^ { 2 } \right) } { \left( x ^ { 2 } + 3 \right) ^ { 5 } }$

Multiple Choice

Simplify the rational expression. Use factoring, and assume all variable expressions represent positive real numbers.
- $\frac { \left( x ^ { 2 } + 3 \right) ^ { 4 } ( 3 x ) - x ^ { 2 } ( 9 ) \left( x ^ { 2 } + 3 \right) ^ { 3 } ( 3 x ) } { \left( x ^ { 2 } + 3 \right) ^ { 8 } }$

A) $\frac { ( 3 x ) \left( 3 - 8 x ^ { 2 } \right) } { \left( x ^ { 2 } + 3 \right) ^ { 5 } }$
B) $\frac { ( 3 x ) \left( 3 - 10 x ^ { 2 } \right) } { \left( x ^ { 2 } + 3 \right) ^ { 5 } }$
C) $\frac { ( 3 x ) \left( 3 + 8 x ^ { 2 } \right) } { \left( x ^ { 2 } + 3 \right) ^ { 5 } }$
D) $\frac { ( 3 x ) \left( 3 + 10 x ^ { 2 } \right) } { \left( x ^ { 2 } + 3 \right) ^ { 5 } }$