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': 'The posterior gastric artery is a branch of - \nSelect and explain. \nA. Left gastric artery, B. Right gastric artery, C. Splenic artery, D. Hepatic artery', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The posterior gastric artery is an unusual branch of splenic artery arising from mid third of the splenic artery.', 'role': 'assistant'}]