Which of the Following Would Be Expected to Cause an Increase

Multiple Choice

Which of the following would be expected to cause an increase in the supply of fax machines?

A) An increase in the number of business firms demanding fax machines.
B) An increase in the price of fax machines.
C) A decrease in the cost of manufacturing fax machines.
D) The expectation that the price of fax machines will fall in the future.
E) An increase in the demand for fax machines.