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': 'Read the following carefully:\n1)\tSpheno-occipital synchondrosis\n2)\tMandibular condyle\n3)\tFrontomaxillary suture\n4)\tNasal septum\n5)\tAlveolar processs\nWhich of the following are sites of cartilaginous growth postnatally? \nSelect and explain. \nA. 1 & 2, B. 1, 2 & 4, C. 2, 3 & 5, D. 3 & 5', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The spheno-occipital synchondrosis, mandibular condyle, nasal septum are components of the cartilaginous growth.\xa0\nNasal septum and alveolar bone are not cartilaginous type of bone.', 'role': 'assistant'}]