Which Activity Could the Nurse Safely Delegate to the Unlicensed

Which activity could the nurse safely delegate to the unlicensed assistive personnel (UAP) ?

A) Answering the client's questions about proper procedure when performing breathing exercises
B) Assisting the client to sit upright in order to perform breathing exercises
C) Evaluating the effectiveness of breathing exercises
D) Evaluating the client's technique when using an incentive spirometer