A Fall in the Average Income of Consumers,say During a Recession,is

Multiple Choice

A fall in the average income of consumers,say during a recession,is represented by:

A) an upward movement along the demand curve for product A.
B) a movement along the demand curve for product A that may be up or down,depending on the direction of the price change.
C) a shift of the demand curve for product A.
D) a rotation of the demand curve for product A.
E) a shift of the demand curve for the related good or service.