The correct answer is C. The camera she uses to shoot videos
Step-by-step explanation:
Capital is one of the factors required to produce services and products. Moreover, capital includes all tools involved in the process of production. For example, in a bakery capital includes the ovens, because these are part of the machinery used in the process of making bakery products.
This concept covers the camera used by Old MacDonald because this is a tool she uses to create videos and obtain profits. Also, this differs from her employees, which are part of the labor, and from the field or animals, which are the natural resources.