Solve the Problem $5 p^{2}+q^{2}=1100$ , Where $p$ Is the Price Per Unit in Dollars And

Multiple Choice

Solve the problem.
-The demand equation for a certain product is $5 p^{2}+q^{2}=1100$ , where $p$ is the price per unit in dollars and $q$ is the number of units demanded. Find $\mathrm{dq} / \mathrm{dp}$ .

A) d $q / d p=-5 p / q$
B) $\mathrm{dq} / \mathrm{dp}=-5 \mathrm{q} / \mathrm{p}$
C) $d q / d p=-p / 5 q$
D) $d q / d p=-q / 5 p$