How can you append an item to a list in Python?

• A. By using the add() method
• B. By using the append() method
• C. By using the insert() method
• D. By using the extend() method

Answer: (B)

In Python, the most straightforward way to add an item to the end of a list is by using the append() method. This method directly modifies the original list by adding the specified item as a single element, ensuring that it is placed at the end of the list.

For example, if you have a list called my_list and you want to add the number 5 to it, you simply call my_list.append(5). After executing this line, the number 5 will be included at the end of my_list.

While there are other methods to modify lists, such as the insert() method, which adds an item at a specific index, or the extend() method, which combines another iterable with the list, they serve different purposes. The insert() method isn't used for appending but instead places an item at a chosen position, and the extend() method adds multiple elements from another iterable rather than appending a single item. The add() method does not exist for lists in Python, which further reinforces why the append() method is the correct choice for this operation.