In the Blackberry Market, the Quantity Demanded Is Given by Q^D

Multiple Choice

In the blackberry market, the quantity demanded is given by Q^D = 2,600 - 500P, and the quantity supplied is given by Q^S = -400 + 100P. What are the equilibrium price and equilibrium quantity?

A) $5 and 100 pounds
B) $4.25 and 3,000 pounds
C) $2.50 and 900 pounds
D) $1.80 and 2,200 pounds