Which of the following factors can change search rankings for an individual user?

All of the listed factors can influence an individual user's search rankings. Search engines personalize results based on a user's past search behavior, such as previously clicked links or topics of interest, to provide more relevant content. The device used (mobile vs. desktop) also matters, as search engines may prioritize mobile-friendly sites for users on smartphones. Finally, a user's geographical location significantly impacts results, especially for local searches, as search engines aim to show businesses and information relevant to their immediate vicinity.