Which of the following correctly describes what the 'popitem()' method does?

• A. Removes a specific item by key
• B. Displays all items in a dictionary
• C. Removes the last inserted key-value pair
• D. Clears the entire dictionary

Answer: (C)

The 'popitem()' method is designed to remove and return the last inserted key-value pair from a dictionary in Python. This method is particularly useful when you want to retrieve the most recently added item while also removing it from the dictionary. In Python 3.7 and later, dictionaries maintain the order of insertion, which means that the last inserted item will be the one removed by 'popitem()'.

The reason why this method is significant is that it provides a convenient way to manipulate the dictionary's contents while simultaneously obtaining information about what was removed, which can be particularly useful in certain programming contexts where tracking changes or accumulations in a dictionary's data is necessary.