An Increase in the Equilibrium Price and a Decrease in the Equilibrium

An increase in the equilibrium price and a decrease in the equilibrium quantity in a market would be caused by:

A) a decrease in the number of sellers in the market.
B) a decrease in the popularity of the good sold in the market.
C) buyers' expectations that the good sold in the market will be unavailable in the future.
D) a decrease in the price of another good that competes with the good sold in the market.