Ibuprofen is the correct answer because Advil is a brand name for a medication that contains ibuprofen as its active ingredient. Ibuprofen is a nonsteroidal anti-inflammatory drug (NSAID) commonly used to relieve pain, reduce inflammation, and lower fever. It is available over-the-counter and also by prescription in higher doses. Therefore, Ibuprofen is the correct answer as it is the generic name for the medication sold under the brand name Advil.