The image shows a multiple-choice question regarding the effects on equilibrium quantity and price in a market for a normal good when there is an increase in buyers' income and a decrease in input prices. The options are: a. Equilibrium quantity would decrease, but the impact on equilibrium price would be ambiguous. b. The equilibrium price would increase, but the impact on the amount sold in the market would be ambiguous. c. The equilibrium price would decrease, but the impact on the amount sold in the market would be ambiguous. d. Equilibrium quantity would increase, but the impact on equilibrium price would be ambiguous