Consider a Perfectly Competitive Market with Inverse Market Supply $P = 5 + 3 Q ^ { s }$

Consider a perfectly competitive market with inverse market supply $P = 5 + 3 Q ^ { s }$ and inverse market demand $P = 50 - 2 Q ^ { d }$ . Suppose the government subsidizes this market with a subsidy of $\$ 5$ per unit. What are the equilibrium price and quantity traded before the subsidy?

A) $P = 30 ; Q = 10$
B) $P = 25 ; Q = 12.5$
C) $P = 32 ; Q = 9$
D) $P = 35 ; Q = 7.5$