This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory System, Subject name: Physiology
[{'content': 'Which of the following is not a consequence of stimulation of lung C fiber endings? \nSelect and explain. \nA. Bronchoconstriction, B. Apnea, C. Rapid shallow breathing, D. Systemic vasoconstriction', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. D. Systemic vasoconstrictionStimulation of lung C fibers will cause bronchoconstriction, apnea, rapid shallow breathing, and skeletal muscle relaxation.', 'role': 'assistant'}]