A patient with Parkinson's disease has a nursing diagnosis of Impaired Physical Mobility related to neuromuscular impairment. You observe a nursing assistant performing all of these actions. For which action must you intervene?

A. The NA assists the patient to ambulate to the bathroom and back to bed.
B. The NA reminds the patient not to look at his feet when he is walking.
C. The NA performs the patient's complete bath and oral care.
D. The NA sets up the patient's tray and encourages patient to feed himself.