Problem: GB is a 64-year-old African American male who presents to the clinic for a blood pressure follow up. He expresses to you that he has been experiencing bothersome leg swelling since initiating amlodipine 5 mg once daily. What is the best recommendation for the management of GB's primary hypertension? Select one: a. Discontinue amlodipine and initiate lisinopril 10mg once daily b. Discontinue amlodipine and initiate hydrochlorothiazide 25 mg PO QD c. Continue amlodipine and initiate HCTZ 12.5mg once daily d. Increase amlodipine to 10mg once daily