What is your prescribed and related text? Because if I know your prescribed text, I might give you some examples from it that can help illustrate this rubric point and which will make it much useful than my current generalised statement...
However, when the rubric says an individuals have the potential to enrich or challenge a group or community-notice if you do a mindmap you will extrapolate many possible ideas that could be related to your prescribed-notice that potential is a low modality word-it signifies that these possibilities may be unfulfilled due to various circumstances-maybe because the individual is a blind conformer, or there is psychological or physical barriers preventing the individual from enriching or challenging a group of community, and if the individual does not succeed in challenging the group with new ideas-they may suffer even dire consequences of social alienation and seclusion
To enrich means to introduce new ideas and new perspectives to broaden pre-existent perceptions and understanding, it may mean a close knit community has very strict rules-maybe hegemonic and patriarchal values, but perhaps a male may decide to challenge and act in such a way that displays he respects equal value of woman, and if the community or group he belongs to starts to gradually understands his reasoning-they may accept the challenge and change their rules to be more respectful for woman's intellectual capacities-however, enriching can also be when someone travels to another community that they don't belong to-where their presence though challenging, can introduce new external ideas and connections
-to challenge means transformation of existent perceptions, rules and ideals-however, you can broaden this understanding by asking questions such as what type of community, what type of groups-virtual, social, familial, cultural, why is the potential achieved-and how does the text highlights this potential-visually, literary techniques and why does the text highlights this? Is the enrichment permanent or transitory? why? is the challenge continuous, or sudden, or accumulated over time, what is the challenge on? what are the potential implications for the individual and group through this challenge/enrichment-when you think more deeply-each rubric points connects to every other-hope this helps