The most common cause of hypoglycemia in a previously stable, well-controlled diabetic patient who has not changed his or her diet or insulin dosage is what?
a) Insulin overdose or administration error, such as accidental double dosing.
b) Delayed or missed meals, resulting in an imbalance between insulin and glucose levels.
c) Increased physical activity without appropriate adjustments in insulin or carbohydrate intake.
d) Certain medications, such as sulfonylureas or insulin secretagogues, causing excessive insulin release or increased sensitivity to insulin.