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': 'All are true about right phrenic nerve except? \nSelect and explain. \nA. Motor branch, B. Sensory branch, C. Arises from C4, D. Longer course than left Phrenic nerve', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The phrenic nerve is a mixed nerve which gives its sole motor supply to the diaphragm. Arises from C3-5 mainly from C4 the right phrenic nerve is shoer and more veical than left. Ref: BD Chaurasia 4th ed vol 2 Page 311', 'role': 'assistant'}]