UKMLA PLAB AMC USMLE Prometric MCQ

Question Number 0930
Question:
Propranolol a commonly used anti-hypertensive drug is contraindicated in diabetic patients being treated with sulphonylurea drugs. The reason for this is because

a) it increases blood glucose levels
b) it adversely reacts with sulphonylurea drugs
c) it masks hypoglycemia
d) it is ineffective in diabetics
e) the statement is incorrect