If Market Demand Is Equal to D(p)= 20 - 3p

if market demand is equal to D(p) = 20 - 3p, the equilibrium price and number of firms operating in the market are (in that order)

A) $3.08 and 7
B) $3.00 and 6
C) $3.00 and 8
D) $3.14 and 3
E) $3.33 and 5