Build target

Which build target should it be?
http://i.gyazo.com/3faef91d1d0b272771fc50a3439cd279.png

wtf does that mean.

Don’t worry that’s just a spam bot. @david it is getting worse.
@xjoey20x Its always best to target the latest version of Android, which is now Android 5.0 (Lollipop). So go with what you have shown in your screenshot.