What should you do to resolve the problem with the client name, WorldCom?

The best approach to resolve an issue with the client name "WorldCom" is to add it to the Concept Stop Word list. When a term is included in this list, it is effectively ignored during the processes of searching and indexing. This is particularly useful if the name is causing irrelevant or excessive results, or if it is frequently misinterpreted by the system due to its generic nature or any similar reasons.

Utilizing this option ensures that the system does not consider "WorldCom" a significant term that would otherwise skew search results or analyses. In scenarios where a particular name leads to complications or confusion in data handling, placing it on the stop word list allows users to focus on more pertinent terms and improves the overall accuracy of information retrieval.

The other strategies, such as conducting a keyword expansion or enabling email header filters, would not directly address the specific issue with the client name. Similarly, re-running a cluster set might help in some contexts, but it would not specifically mitigate the problem regarding the interpretation or relevance of "WorldCom" in sorting or indexing processes.