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.

well cos like a ds it doesn't really die out, unlike for example, fifa, they always come out with a new version, so lets say your fifa 18 is charging you to update the teams and stuff, so, if messi were to go to real madrid (never gonna happen) it would switch messi to the other team, until the owners of fifa come out with fifa 19, then the game would eventually stop updating, and back to the ds, it doesn't really stop working after sometime because there's lots of things that it could be used for, and idk if u know what i'm saying, but long story short, samsung, represents the ds, if they still work, and people love them but not the new version, the old version still works, so they don't really force people to buy new phones, get me?