Which villain group is led by Zavok in Sonic Lost World?

The villain group led by Zavok in Sonic Lost World is the Deadly Six.

The Deadly Six are a tribe of Zeti native to the Lost Hex, the floating world where much of the game takes place. Their leader, Zavok, is joined by Zazz, Zomom, Master Zik, Zeena, and Zor. Together, they serve as the game's main antagonists and boss characters.

Doctor Eggman initially controls the group with the Cacophonic Conch, a device that causes them pain when played. Sonic accidentally frees them by kicking the conch away, allowing the Zeti to seize control of Eggman's Badniks and turn against him.

The other options belong to different Sonic contexts. Team Dark consists of Shadow, Rouge, and Omega; the Babylon Rogues are a rival group of Extreme Gear racers; and the Hard-Boiled Heavies come from Sonic Mania rather than Lost World.