Final answer:
The best action when a shopper topples a pyramid of canned goods is to clean it up immediately if possible, to maintain safety and a pleasant shopping environment.
Step-by-step explanation:
If a shopper topples a pyramid of canned goods in the aisle, the best course of action would be C. Clean it up immediately if possible. This prevents accidents and maintains a safe and pleasant shopping environment. If you are not a store employee, you could alert staff or offer to help. It's not advisable to ask the customer to clean it up as it may lead to negative experiences and it's not the shopper's responsibility. While calling janitorial staff is an option, it's often more efficient for the person who notices the issue to address it promptly, if capable. Always consider safety and store policies in such situations.