Which document serves as a tutorial for first-time users of a product?

The correct choice, a tutorial, is specifically designed to guide first-time users through the features and functionalities of a product in a clear and accessible manner. Tutorials typically provide step-by-step instructions and practical examples to facilitate learning and help users become comfortable with the product. They often assume little to no prior knowledge and are structured to make the onboarding process easier and more intuitive.

In contrast, a service manual tends to focus on the maintenance and repair aspects of a product rather than user orientation, making it less suitable for new users who are looking for introductory guidance. An operator's manual may contain essential information on how to operate the product but is often more technical and may not provide the same level of user-friendly instructions as a tutorial. Procedures are generally outlines of specific tasks or actions to be performed, which may not cater directly to the needs of first-time users who are unfamiliar with the overall operation of the product.