Start at the original (correct) equilibrium price and quantity in part (a). Suppose that the government wishes to decrease the market equilibrium monthly rent by increasing the supply of housing. Assuming that demand remains unchanged, by how many units of housing would the government have to increase the supply of housing in order to get the market equilibrium rental price to fall to $2,000 per month? To $1,500 per month? To $1,000 per month?