What does Git facilitate that aids in code quality assurance?

Git facilitates code reviews through pull requests, which is a crucial aspect of maintaining code quality. When a developer implements new features or fixes, they can create a pull request to propose merging their changes into the main codebase. This process allows other developers to review the code, suggest improvements, and highlight potential issues before the new code is integrated. This collaborative approach not only enhances the overall quality of the code but also promotes knowledge sharing among team members.

In contrast, the other options do not directly contribute to code quality assurance. Automatic rollback of changes can help recover from errors, but it doesn’t inherently improve the code quality; rather, it acts as a safety net. Limiting the number of commits might streamline the commit history but can obscure the development process, making it harder to track changes and reviews. Direct file uploads do not involve version control processes and lack the collaborative review mechanism that Git provides through pull requests.