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': 'Parakeratosis is \nSelect and explain. \nA. Premature and abnormal keratinization, B. Increased formation of keratin, C. Nucleated keratinocytes in stratum corneum, D. Elongated rete ridges', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Normally nucleus will be lost in keratinocytes when they reach stratum corneum.\nPresence of nucleated\xa0keratinocytes in stratum corneum is seen in psoriasis because of decrease in transit time - termed as " parakeratosis"', 'role': 'assistant'}]