What is the result of using the 'append()' method on a list?

The 'append()' method in Python is designed to add a single item to the end of a list. When you call this method on a list, you provide the item you want to add as an argument, and that item is placed at the very last position in the list. This is a straightforward way to grow the list dynamically, accommodating new elements as needed.

For example, if you have a list called my_list and you use my_list.append(5), the number 5 will be added to the end of my_list, regardless of how many items were already in that list. This behavior allows for efficient management of lists without needing to specify an index for placement.

The other options present different functions that the append method does not perform. For instance, adding an item at a specified index would require using methods like insert(), removing the last item pertains to the pop() method, and sorting a list requires the sort() method or the built-in sorted() function. Each of these methods serves a different purpose, highlighting the unique functionality of 'append()' in list manipulation.