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: Pathology
[{'content': 'The swollen degenerating epithelial cell due to acantholysis is: \nSelect and explain. \nA. Tzanck cell., B. Ghost cell., C. Prickle cell, D. Anitschow cell', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]