Final answer:
Team cohesion motivates a group for success, creating a 'we-ness' among members who then refer to activities in terms of 'we' (c). The reference group, team halo effect, and informational social influence are related concepts that describe how groups can impact the behavior and perception of individuals.
Step-by-step explanation:
When team cohesion is strong, a group is more likely to be motivated and coordinated, leading to increased chances of success. A strong sense of cohesion within a team is evident when there is a unified sense of identity, commonly referred to as 'we-ness', where team members speak in terms of 'we' rather than 'I'. This phenomenon is a result of a shared team identity, where the values, norms, and beliefs of the group inform the behavior and attitudes of the individual members -- this is known as a reference group.
Furthermore, the team halo effect is a related concept where teams may seem more effective than they actually are, often because of this perceived unity and success. Lastly, informational social influence is a form of conformity where individuals align with group norms based on the belief that the group is competent and possesses the correct information, particularly when the solution to a problem is not clear or when the group is deemed to have expertise.