Final answer:
If a stacked load begins to lean or shift while being raised, the correct course of action is to lower the load immediately and call for assistance if needed. Ignoring the situation is not safe.
Step-by-step explanation:
If a stacked load begins to lean or shift while being raised, the correct course of action is to lower the load immediately. Continuing to raise the load can increase the risk of it toppling over and causing injury or damage. Calling for assistance is also advisable, especially if the load is too heavy or unstable to handle alone. Ignoring the situation is not an appropriate response as it can lead to accidents and further complications.