Which one of the following rhythm games was made by Harmonix?

The story behind the answer

Rock Band is the correct answer because it was developed by Harmonix and launched in 2007, expanding rhythm gaming beyond guitar to a full band—guitar, bass, drums, and vocals. Harmonix had earlier created Guitar Hero and Guitar Hero II, then evolved the concept into Rock Band, which emphasized cooperative play and massive downloadable song libraries.

To distinguish the others: Dance Dance Revolution and Beatmania (the inspiration behind the punny “Meat Beat Mania”) are Konami series, and Guitar Hero Live was developed by FreeStyleGames under Activision. Memory tip: Harmonix = harmony = a whole band, so Rock Band.