儒家是诸子百家中影响最大的一个学派，产生于春秋时期，主要代表人物有（）

A．孔子、荀子、孟子

B．孔子、孟子、庄子

C．孔子、老子、墨子

D．孔子、韩非子、尉缭子

After striking his head on a tree while falling from a ladder, a young man is admitted to the emergency department. He’s unconscious and his pupils are nonreactive. Which intervention would be the most dangerous for the client（）

A. Give him a barbiturate.

B. Place him on mechanical ventilation.

C. Perform a lumbar puncture.

D. Elevate the head of his bed.