Answer:
Viewing it in dual view or source view can help you see the HTML and CSS code that makes up your website, but it may not give you a complete picture of what the website will look like and how it will function when published. Similarly, publishing your website may give you an idea of how it looks and works, but it may not be the only way to know exactly how it will appear.
The option that is most likely to provide an accurate representation of how your website will look and work when published is viewing it in WYSIWYG (What You See Is What You Get) mode. This mode allows you to create and edit your website in a visual editor, where you can see how the website will appear to users as you work on it. However, it's still important to test your website on different devices and browsers to ensure that it works correctly for all users.