Final answer:
Documentation tells users how to use software and helps with troubleshooting. It is essential for understanding software features and resolving potential issues.
Step-by-step explanation:
Documentation is the correct answer to the question. It serves as a detailed guide, providing necessary information on how to use software and offering solutions for potential problems that might arise during its use. Documentation is a comprehensive term that can include user manuals, troubleshooting guides, and FAQs. These materials help users understand the software's features, learn how to effectively use the program, and resolve issues without the need for direct support.