Answer: d) crowd
Explanation: Crowd is considered as the unorganized group of people who have gathered for some particular motive or reason.The unruly gathering of people is temporary and the contact of people in crowd is also for short-time.
The group of jocks and the group of druggies are known as crowd as they have the gathered with particular reason of sports and taking drugs respectively in unruly group.
Other options are incorrect because teams and squad collection of team members to pursue one task.Clique is the large gathering of people with same interest and do not let other people become a part of their group.Thus, the correct option is option(d).