Acarbose , a hypoglycemic agent, exerts which of the following mechanisms of action.. Decreases circulating insulin antibiotics

Acarbose , a hypoglycemic agent, exerts which of the following mechanisms of action?
A.Increased insulin secretion
B. Increased insulin receptor sensitivity
C . Decreases circulating insulin antibiotics
D. Delays digestion of carbohydrates
E. None of the above.