Final answer:
Tahir is part of a social network, a group of individuals who interact and connect with each other based on shared interests or activities.
Step-by-step explanation:
Tahir is part of a social network. A social network is a group of individuals who interact and connect with each other based on shared interests or activities. In this case, Tahir and the other members of the group share an interest in an online multiplayer shooter video game. They play the game together, exchange game hacks and shortcuts, and spend time interacting with each other. The online nature of this group makes it a social network.