The demand curve is shifted by changes in many factors. Which of the following are factors that can shift the demand curve for laptop computers?
- cost of production of the laptop computer.
- buyers' income.
- buyers' expectations about the product and about future price changes
- price of substitutes for laptop computers.
- the number of suppliers of laptop computers.
a. All five are factors of demand and changes in any of them will shift the demand curve.
b. Only I and V are correct.
c. Only III and V are correct.
d. Only II, III, and IV are correct.
e. Only I is correct.