What is the appropriate use for Lamisil AT (topical) and Lamisil (PO)? a) Lamisil AT: Oral antifungal; Lamisil: Topical antifungal b) Both Lamisil AT and Lamisil are used topically c) Lamisil AT: Topical antifungal; Lamisil: Oral antifungal d) Lamisil AT: Topical antifungal; Lamisil: Intravenous antifungal