Which of the Following Is True

Multiple Choice

Which of the following is true?

A) For an inferior good, when income increases, the demand curve shifts leftward.
B) If the price of a substitute rises, the demand curve shifts leftward.
C) If people expect the price of a good will rise in the future, the demand curve shifts leftward.
D) An increase in population shifts the demand curve leftward.
E) An increase in the cost of producing a good shifts the demand curve leftward.