question: Q:A 57-year-old woman presents to her physician for a checkup. The past medical history is significant for diabetes mellitus type 2, and a history of myocardial infarction. The current medications are aspirin, lisinopril, metoprolol, atorvastatin, and metformin. The patient’s HbA1c is 7.9%, and her fasting blood glucose is 8.9 mmol/L (160 mg/dL). Which of the following statements regarding the use of exenatide in this patient is most correct?? 
  {'A': 'It cannot be combined with metformin.', 'B': 'Its use may cause weight gain.', 'C': 'It does not decrease cardiovascular outcomes.', 'D': 'There is a high risk of hypoglycemia in patients who use this medication.', 'E': 'This medication should not be combined with insulin.'},