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': 'Which of the following describes cells that are abnormal in appearance and may become premalignant? \nSelect and explain. \nA. Aplasia., B. Dysplasia., C. Karyomegaly., D. Pleomorphism.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Dysplastic cells are abnormal in appearance and organization. The potential to develop into a malignant tumor is present; however, this risk varies.', 'role': 'assistant'}]