A Nike women's-only store in California offers women's running, training, and sportswear products and also contains an in-store fitness studio for group and personal fitness training sessions. The store consistently earns profits in excess of $468,000 per year and is located on prime real estate in the center of town. The store owner pays $12,000 per month in rent for the building. A real estate agent approached the owner and informed her that she could add $6,000 per month to her firm's profits by renting out the portion of her store that she uses as a fitness studio. While the prospect of acquiring this rental income was enticing, the owner believed the use of that space as a fitness studio was an important contributor to her store's profits. What is the opportunity cost of continuing to operate the fitness studio within the store?

1. which one of the following would be an example of a supply-side market failure? a. a gas station is slowly leaking diesel fuel from its underground tanks, and after the leak is discovered, the business immediately cleans up the pollution at its own expense. b. a gas station is slowly leaking diesel fuel from its underground tanks, but the state uses taxpayer money to clean up the pollution rather than requiring the business to pay. c. your business wants to attract repeat customers by putting on a customer-appreciation picnic at a public park, but you decide not to because you couldn't prevent noncustomers from consuming the food and entertainment you provided. d. everyone rushes to the local retail outlet at midnight on the day of the release of a new video game console, and the store runs out before everyone is able to buy one.