Alex comes to your clinic to discuss starting hepatitis C treatment past medical history includes type two diabetes, hypertension, and COPD and newly diagnosed atrial fibrillation. Currently Alex is prescribed the following medications: metformin, metoprolol, lisinopril, amiodarone, albuterol metered dose inhaler and salmeterol. Which of the currently prescribe medication is cause for concern of administered with sofosbuvir/velpastisvir?
A. Metoprolol
B. Albuterol
C. Amioradone
D. Metformin