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': 'Periodontal ligament fibroblasts can generate a force for tooth Eruption as: \nSelect and explain. \nA. Expression of alkaline phosphate and cyclic AMP is more in Periodontal ligament fibroblasts., B. Motile and contractile., C. Fibroblast is responsible for the formation and remodelling of the periodontal ligament fibres., D. None of the Above.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Periodontal ligament fibroblasts are ectomesenchymal\xa0in origin whereas gingival fibroblasts are mesodermal in\xa0origin.\nExpression of alkaline phosphatase and cyclic AMP is\xa0more in periodontal ligament fibroblasts. Gingival fibroblasts are less proliferative\nPeriodontal ligament fibroblasts can generate a force\xa0for tooth eruption as they are motile and contractile.\xa0Fibroblasts in PDL are capable of collagen degradation\xa0also.', 'role': 'assistant'}]