A Patient with Diabetes Was Admitted to the Emergency Department

A patient with diabetes was admitted to the emergency department when he was found unresponsive at his desk at work.A capillary blood glucose level was 2.2 mmol/L (38 mg/dL) ,and he was treated for hypoglycemia.When he recovers,he tells the nurse that he had no warning of the hypoglycemia.Which of the following questions will help identify a possible reason for the patient's hypoglycemic unawareness?

A) "Do you use any calcium channel-blocking drugs for blood pressure?"
B) "Have you observed any recent skin changes?"
C) "Do you notice any bloating feeling after eating?"
D) "Have you noticed any painful new ulcerations or sores on your feet?"