Percocet is a medication that contains a combination of two active ingredients, oxycodone and acetaminophen. Oxycodone is a strong opioid pain reliever, while acetaminophen is a non-opioid pain reliever and fever reducer. Together, they work to relieve moderate to severe pain. Therefore, the correct answer is oxycodone/acetaminophen, which accurately represents the active ingredients in Percocet.