Corner offices in high rise office buildings usually cost more to rent than other offices. This best illustrates the economic principle of: a) opportunity costs. b) scarce resources. c) marginal analysis. d) markets coordinate trade.

The situation described illustrates the economic principle of **scarce resources**. Here's the reasoning: 1. **Scarce Resources**: This principle refers to the limited availability of resources in comparison to the unlimited wants and needs of individuals. Corner offices in high-rise buildings are considered a scarce resource because they are limited in number and often offer better views and more prestige, leading to higher demand and, consequently, higher rental costs. 2. **Opportunity Costs**: This principle involves the cost of forgoing the next best alternative when making a decision. While renting a corner office may involve opportunity costs, the scenario specifically highlights the cost aspect rather than the trade-off. 3. **Marginal Analysis**: This principle involves comparing the additional benefits and costs of a decision. The question does not focus on the incremental benefits of renting a corner office versus another type of office. 4. **Markets Coordinate Trade**: This principle refers to how markets facilitate the exchange of goods and services. While it is relevant to the rental market, it does not specifically explain why corner offices cost more. Thus, the best answer is **b) scarce resources**.