The given excerpt is an example of hegemony.
Option a
Explanation:
From the statement it clear that punishment should be given to the individual who has stolen the property at the party. Their idea is to give a chance to the individual who has done this act and make him realize for the mistake.
So, to uplift confidence in the group, they themselves formed the norms. Based on the norms and ideals of the group the authority will pronounce the punishment for the individual and make him realize for the act.
By doing this he has given a fair chance to get reformed. Here the term hegemony used to refer a group and the power of ruling is to convince all in the group.