This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy of skin, Subject name: Dental
[{'content': 'The epidermal turn over time is \nSelect and explain. \nA. 14 days, B. 28 days, C. 40 days, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Epidermal turn over time or skin doubling time includes:- Transit time from basal layer to stratum corneum = 14 days; transit through the stratum corneum/desquamation = 14 days (total = 28 days from basal layer to desquamation. Ref:- Review of Dermatology by Alikhan; pg num:-2', 'role': 'assistant'}]