Final answer:
Ana should use version control best practices by updating her local copy, selectively adding her changes, and then committing and pushing these changes to ensure only her work is included in the commit.
Step-by-step explanation:
When Ana has finished creating a new object with specific fields and validation rules and she wants to ensure that only her work is committed to a shared project where others like Dave are also contributing, she should use version control best practices to separate and manage changes. Before committing her work, Ana should perform an update or pull operation to ensure the latest changes from the repository are merged with her local copy. After resolving any conflicts, Ana should selectively add only her changes to the staging area, carefully avoiding files or changes made by Dave. Once the desired changes are staged, Ana should commit and push her updates to the repository. This ensures that only Ana's object, fields, and validation rules are included in the commit. In a collaborative environment, it is also a good habit to communicate with team members like Dave to manage and coordinate work and changes more effectively.