Solve the System Graphically $p = q ^ { 2 } + 3 q + 125$

Multiple Choice

Solve the system graphically.
-The supply function for a product is given by $p = q ^ { 2 } + 3 q + 125$ and the demand is given by $p = 555 - 30 q$ , where $\mathrm { p }$ is the price in dollars and $\mathrm { q }$ is the number of hundreds of units. Find the price that gives market equilibrium and the equilibrium quantity.

A) $305; 1200 units
B) $100; 555 units
C) $255; 1000 units
D) $10; 255 units