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$800 $700 $600 Price $500 $400 Price Ceiling $300 $200 $100 10 20 30 40 50 60 70 80 90 20 Apartment Units (in Thousands) In the market for housing, the local government imposes a price ceiling on apartment unit rentals as illustrated in the graph above. At the price ceiling, what happens to each of the following questions below? Quantity Demanded Quantity Supplied O Quantity Demanded = 40,000 Quantity Supplied = 20,000 O Quantity Demanded = 50,000 Quantity Supplied = 30,000 O Quantity Demanded = 20,000 Quantity Supplied = 60,000 O Quantity Demanded = 10,000 Quantity Supplied = 70,000