Answer:
The correct answers are:
- make their websites more user-friendly
- return to their designs over time to make edits
Step-by-step explanation:
Adding web pages helps designers to improve the user experience by providing more content and making it easier to find information. Designers can also use additional pages to organize the website's structure and create a clear hierarchy of information. Finally, adding web pages enables designers to revisit their designs over time and make changes or updates as needed. However, adding web pages does not necessarily mean creating multiple websites, as multiple web pages can be part of a single website.