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: Dental
[{'content': 'Polyglycolic acid suture material ("Vicryl") is a / an \nSelect and explain. \nA. Absorbable natural suture, B. Absorbable synthetic suture, C. Non-absorbable natural suture, D. Non-absorbable synthetic suture', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]