What is the purpose of a version control system?

to store copies of all of the previous versions of the code
to make code more Pythonic
to record how much time it took to develop the code
to explain what the code does

The purpose of a version control system is to manage and track changes to software code over time. It allows developers to keep track of different versions or revisions of a codebase, enabling collaboration and facilitating the ability to roll back to previous versions if needed. Version control systems maintain a history of changes, providing a complete record of who made specific changes, when they were made, and why they were made. This aids in debugging, troubleshooting, and overall software development process management.