A 56-Year-Old Patient Has Had Late-Onset Type 2 Diabetes (NIDDM)for

A 56-year-old patient has had late-onset type 2 diabetes (NIDDM) for the past 5 years.He has been taking a variety of oral hypoglycemic agents,but his blood sugar level is getting higher.He comes in today with blurred vision,lethargy,polyuria,polyphagia,and polydipsia.Which therapy is the doctor most likely to recommend?

A) Switching to another oral hypoglycemic agent because the patient has developed insulin resistance
B) Switching to another oral hypoglycemic agent because the patient has developed the Somogyi effect
C) Switching to another oral hypoglycemic agent because the patient has developed an allergy to the product
D) Switching to insulin because the oral pills have been ineffective