Final answer:
Hair develops from a group of epidermal cells at the base of a tube-like depression called a hair follicle, which is the correct answer to the student's question.
Step-by-step explanation:
Hair develops from a group of epidermal cells at the base of a tube-like depression called a hair follicle. The correct answer to the question is A) Follicle. A hair follicle is a complex structure made of multiple layers of cells originating from basal cells in the hair matrix and the hair root. The cells of the hair matrix divide, differentiate, and contribute to the formation of the hair. Hair growth begins with the production of keratinocytes by the basal cells of the hair bulb at the follicle, and these cells are pushed outward forming the hair shaft which is eventually exposed at the skin's surface.