Which of the following permissions does Read Only allow users to perform on a file?

Read Only permission allows users to open and view the file without making any changes. When a file is set to Read Only, users can access the content to read it but are restricted from modifying it in any way, such as editing or deleting. This type of permission is often used to safeguard important documents, ensuring that they can be viewed by many users but altered only by those with appropriate permissions. It emphasizes the importance of maintaining the integrity of the file's content while still allowing access for reference and review. The other choices involve actions that require higher permissions than what Read Only allows.