input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** An experimental new drug in the treatment of diabetes mellitus type 2 was found to increase the levels of incretins by preventing their degradation at the endothelium. This further increased glucose-dependent insulin production. Which of the following drugs has a mechanism of action most similar to this new experimental drug?   (A) Sitagliptin   (B) Glimepiride   (C) Canagliflozin   (D) Pioglitazone
output: ['(A) Sitagliptin <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Sitagliptin  (B) Glimepiride  (C) Canagliflozin  (D) Pioglitazone <> possible answers', '  An experimental new drug in the treatment of diabetes mellitus type 2 was found to increase the levels of incretins by preventing their degradation at the endothelium. This further increased glucose-dependent insulin production. Which of the following drugs has a mechanism of action most similar to this new experimental drug? <> context']