You are creating a mobile version of a community discussion site for busy moms. Users post questions and other topics for discussion. Some days there are as many as 20 new discussion threads. Considering your audience, what might be the best way to lay out navigation elements on the home page

Create a small, collapsible navigation bar at the top of the home page so users can see new topics without scrolling

Explanation:

By so doing the user experience on the website would be improved because, instead of struggling through several pages to read through discussion threads, they can simply click on the navigation bar and pick a discussion topic that interests them.