Find the Rate of Change of X with Respect to P

Multiple Choice

Find the rate of change of x with respect to p. $$p = \frac { 2 } { 0.00001 x ^ { 3 } + 0.1 x } x \geq 0$$

A) $- \frac { 2 } { p ^ { 2 } \left( 0.00003 x ^ { 2 } + 0.1 \right) }$
B) $- \frac { 2 } { p \left( 0.00003 x ^ { 2 } + 0.1 \right) }$
C) $- \frac { 2 } { p ^ { 2 } x \left( 0.00003 x ^ { 2 } + 0.1 \right) }$
D) $- \frac { 2 } { p x \left( 0.00003 x ^ { 2 } + 0.1 \right) }$
E) $- \frac { 2 x } { p ^ { 2 } \left( 0.00003 x ^ { 2 } + 0.1 \right) }$