Which approach demonstrates effective case management in this situation?

While seeking an independent review might seem prudent, it does not directly address the discrepancies at hand. This approach could delay the case and may not provide the necessary context that only the client can offer regarding their situation.

Withdrawing from the case prematurely can hinder the client's opportunity to clarify their situation and may lead to unjust outcomes. It is essential to first explore the reasons behind the contradictions before making such a significant decision regarding case management.

Submitting documents without further investigation misses an important opportunity to address discrepancies directly with the client. This approach assumes that the independent assessment will resolve all issues, which may not be the case if misunderstandings or lack of information persist.