Final answer:
The determinant of demand in the market for laptop computers is the price of laptop computers.
Step-by-step explanation:
The determinant of demand in the market for laptop computers is D. The price of laptop computers. This is because the price of a product is one of the main factors that influence the quantity demanded by consumers. When the price of laptops is high, the demand is likely to be lower. Conversely, when the price is low, the demand tends to be higher.
The following factors affect the demand for laptop computers as their prices fluctuate:
1. The Demand Law: If other factors remain constant, the law of demand states that when a product's price rises, the quantity demanded decreases, and vice versa. The market for laptop computers is also subject to this opposite relationship between demand and price. Customers may decide to purchase fewer laptops if the price of laptops rises, which will result in a decrease in demand.
2. Effect of Substitution: Customers may choose to replace laptop computers with other products as their prices rise. For instance, consumers may choose to purchase desktop computers (option B), which are regarded as consumption substitutes, if the price of laptops becomes prohibitively high. The demand for laptops may be further affected by this substitution effect.