Which of the Following Statements About Demand and Supply Accurately

Multiple Choice

Which of the following statements about demand and supply accurately describes the direction one of the curves will take if one variable is altered?

A) The supply curve will shift to the left if taxes are decreased.
B) The demand curve will shift to the left if buyers' incomes increase.
C) The demand curve will shift to the right if the number of buyers decreases.
D) The supply curve will shift to the left if the number of suppliers increases.