Final answer:
Option B correctly explains the in-group concept at Queen's University, stating that the in-group would view the university as fostering a positive environment, in line with the definition of in-groups where members feel belonging and positively identify with the group.
Step-by-step explanation:
According to the concept of in-groups at Queen's University, which was led by Sociologist William Sumner, option B would likely be the most accurate: the in-group would think that Queen's fosters the most positive environment for its students and staff. An in-group is a social group with which a person identifies as being a member, where the individual feels a sense of belonging, and in this case, would view the group's environment positively.
Conversely, an out-group is one that the individual does not identify or belong to and may often compete with or disdain. Therefore, in-group members would likely believe in the positive qualities of their group, such as having a good environment, rather than perceiving deficits or inferiorities.