This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pharmacology
Which of the following drugs is taken during the first part of the meal for the purpose of delaying absorption of dietary carbohydrates ? 
Select and explain. 
A. Acarbose, B. Glipizide, C. Nateglinide, D. Pioglitazone
A: Acarbose
Answer: A: Acarbose 
Explanation: None