Final answer:
To decrease the risk for future hearing loss, the nurse should discuss the importance of limiting exposure to amplified music.
Step-by-step explanation:
To decrease the risk of future hearing loss, the nurse who is working with college students at the on-campus health clinic should implement the action of discussing the importance of limiting exposure to amplified music (option c). This is because repeated exposure to loud sounds, such as amplified music, is the most common cause of hearing loss. By educating college students about the risks and promoting safe listening habits, the nurse can help reduce the likelihood of future hearing loss in this population.