In the first sentence of the passage, the author refers to antisocial gamers primarily to B. acknowledge a belief that is likely to be held by some of her audience.
The central idea of the author is that video games are important as it can be used in developing collaborative problem-solving skills than can be used by an individual in the real world.
According to the author, when someone says that he is a gamer, people believe that such a person is boring and antisocial.
They believe that such a person just sits and plays games but this is not the case. Gamers are social and fun-loving people.
