Final answer:
The subject of this question is Business. The correct answer is option c) Athlete Used Equipment Policy.
Step-by-step explanation:
The subject of this question is Business. It is asking about the guidelines or policies related to athletes purchasing used equipment. The options provided in the question are Athlete Equipment Procurement Guidelines, Public Availability of Used Equipment, and Athlete Used Equipment Policy. Therefore, the correct answer to the question is option c) Athlete Used Equipment Policy.