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': 'Artery/arteries supplying occipital cortex is - \nSelect and explain. \nA. PCA, B. MCA, C. MCA + PCA, D. ACA', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]