Which of the following segments on Lexis are written by commercial editors?

The correct answer is the synopsis or case summary. These segments are specifically crafted by commercial editors who aim to provide a brief, yet comprehensive overview of case opinions. The purpose of these summaries is to present key facts, issues, and judicial decisions in a manner that is accessible and useful for legal practitioners.

Commercial editors often analyze case law and statutory materials to distill complex legal arguments into concise summaries that highlight important points. This editorial process enhances the usability of the information, making it easier for users to quickly understand the essence of a case without sifting through the entire opinion.

In contrast, case opinions and statutory laws are primary materials produced by courts and legislative bodies. These documents are not typically rewritten by commercial editors as they represent the authoritative texts of legal proceedings and laws. Dispositions, while relevant in legal contexts, refer specifically to the outcome of a case and may also not involve editorial restructuring by commercial editors in the same manner as synopses do. Thus, the unique nature of synopses or case summaries as a result of editorial work by commercial editors makes this the correct answer.