The name of Twitch’sannualin-person conference is called:

TwitchCon is the correct answer because it is the official and widely recognized name for Twitch's annual in-person conference, where streamers, viewers, and industry professionals gather for panels, workshops, and community events. "Twitch Game plan" is incorrect; while it sounds like a plausible event name, it is not the actual name of Twitch's annual conference. "TAC (Twitch Annual Conference)" is also incorrect; it's an acronym that might seem logical but does not correspond to the official name of the event.