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: Physiology
[{'content': 'The gastric phase of gastric secretion is brought about by \nSelect and explain. \nA. Neural factors, B. Hormonal factors, C. Gastric distension, D. Presence of proteins in the stomach', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Hormonal', 'role': 'assistant'}]