Shoes Are a Normal Good and People's Incomes Rise

Multiple Choice

Shoes are a normal good and people's incomes rise.Simultaneously the number of companies making shoes decreases.As a result,the equilibrium price of a pair of shoes ________ and the equilibrium quantity ________.

A) definitely rises; might increase, decrease, or not change
B) definitely rises; definitely increases
C) might rise, fall, or not change; might increase, decrease, or not change
D) None of the above answers is correct.