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: Anatomy
[{'content': 'In temporomandibular joint least vascularity is seen in which of the following - \nSelect and explain. \nA. Articular cartilage, B. Anterior part of articular disc, C. Posterior part of articular disc, D. Central part of articular disc', 'role': 'user'}, {'content': 'Answer: D \nExplanation: There is a profuse capillary collar hugging margin of avascular fibrous disc. The vascular crown is thickest posteriorly less so anteriorly and some what meager medially and laterally but not centrally.', 'role': 'assistant'}]