A charge nurse is supervising a newly hired nurse who is instructing a client about how to use a walker. For which of the following actions should the charge nurse intervene?

A. The client lifts the walker as it is moved forward: Correct technique to reposition the walker safely. B. The client advances the walker and takes a step toward it: The walker should be moved first, then the client steps into it for balance. C. The client grasps the walker by the hand grips on the upper bars: Correct hand placement to maintain control and safety. D. The client takes multiple steps while holding the walker: The client should move the walker forward and advance one step at a time with the affected leg first, followed by the unaffected leg. Taking multiple steps increases fall risk and reduces stability.