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: Anatomy
[{'content': 'Which cells are not present in cerebral cortex? \nSelect and explain. \nA. Purkinje, B. Stellate, C. Cajal, D. Pyramidal', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]