Refer to the Above Graph, Which Shows the Supply and Demand

Refer to the above graph, which shows the supply and demand for rental housing in a city.If over time the supply curve shifts to S₂ because landlords abandon rental units, but rent controls remain, the quantity demanded for housing would be at point:

A) d and the quantity supplied at point a.
B) g and the quantity supplied at point b.
C) f and the quantity supplied at point d.
D) g and the quantity supplied at point a.