Dana spends $10,000 on remodeling a storefront that she then opens as a shoe store. The business has not been very successful, and she needs an additional $3,000 to keep the shoe store open. Which of the following is true?

A. The $3,000 represents her marginal costs of production.
B. The $3,000 Dana needs to keep the deli open represents her total fixed costs.
C. The $10,000 Dana spent on remodeling represents a part of the total variable cost of her business.
D. The $10,000 Dana spent on remodeling is a fixed cost of her business.

Answer: D