A 56-year-old with a mechanical aortic valve is scheduled for dental extraction. No penicillin allergy. What antibiotic prophylaxis is recommended to prevent infective endocarditis?AAmoxicillin 2 g orally 30-60 minutes before the procedure.BClindamycin 600 mg orally 1 hour before.CNo prophylaxis is indicated for dental extraction in this patient.DAmoxicillin 500 mg after the procedure only.EVancomycin 1 g IV 2 hours before the procedure as first choice.Check my answer