This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrine System, Subject name: Physiology
[{'content': 'Which of the following decreases in a flight and fright situation? \nSelect and explain. \nA. Pupillary diameter, B. Blood pressure, C. Blood glucose, D. Airway resistance', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Airway resistance : Decreases Blood glucose : Increases Blood pressure : Increases Pupillary diameter : Increases (mydriasis)', 'role': 'assistant'}]