Write the Expression with Only Positive Exponents and Evaluate If $$\frac { 1 } { h } \left( \frac { 1 } { ( x + h ) ^ { 2 } + 2 } - \frac { 1 } { x ^ { 2 } + 2 } \right)$$

Write the expression with only positive exponents and evaluate if possible. Assume all variables represent nonzero real
numbers.
- $$\frac { 1 } { h } \left( \frac { 1 } { ( x + h ) ^ { 2 } + 2 } - \frac { 1 } { x ^ { 2 } + 2 } \right)$$

A) $\frac { - 2 x + h } { ( x + h ) ^ { 2 } \left( x ^ { 2 } + 2 \right) }$

B) $\frac { 2 x + h } { \left( ( x + h ) ^ { 2 } + 2 \right) \left( x ^ { 2 } + 2 \right) }$

C) $\frac { 2 x } { \left( ( x + h ) ^ { 2 } + 2 \right) }$

D) $\frac { - 2 x - h } { \left( ( x + h ) ^ { 2 } + 2 \right) \left( x ^ { 2 } + 2 \right) }$