An Economist for a Bicycle Company Predicts That, Other Things

Multiple Choice

An economist for a bicycle company predicts that, other things equal, a rise in consumer incomes will increase the demand for bicycles. This prediction assumes that

A) there are many goods that are substitutes for bicycles.
B) there are many goods that are complementary to bicycles.
C) there are few goods that are substitutes for bicycles.
D) bicycles are normal goods.