What does the law of demand state?
A. If consumers behave irrationally, then market disequilibrium will result.
B. If consumers behave rationally, there will be an increase in quantity demanded when the price for a product falls.
C. If consumers behave irrationally, the higher consumer incomes mean higher demand.
D. If consumers behave rationally, there will be an increase in quantity supplied when the price for a product falls.