党的( )指明公安机关及其人民警察从事工作的基本方向、基本要求和基本做法。

A．公安法规

B．公安理论

C．公安原则

D．公安政策

When reporting to the surgeon that a chest tube is malfunctioning, the nurse is ordered to reposition the tube and obtain a chest radiograph. The nurse should（）

A. inform the surgeon this isn’t within her scope of practice.

B. report the surgeon to the Ethics Committee.

C. report the surgeon to the nursing supervisor.

D. follow the order as requested by the surgeon.