You were able to demonstrate a high level understanding of the changes contemplated by Basel 4 and how they materially differ from Basel 3. You were able to cite appropriate references that support the descriptions provided.

Highlight one change you believe will have the greatest impact on most banks, and discuss at length your supporting rationale. Your discussion should address capital requirements, operational impacts, and competitive challenges.

please address capital requirements, operational impacts, and competitive challenges separately. 
No introduction or summary is needed.