What function does the COPY command perform?

The chosen answer, which indicates that the COPY command copies a specified range of lines to the memory buffer, is indeed accurate. This command is essential in programming and text manipulation because it allows users to duplicate text or code without removing it from its original location. By storing the copied content in the memory buffer, users can then paste it elsewhere as needed, facilitating easier editing and management of code or data. This functionality is fundamental for enhancing efficiency during programming tasks, as it enables quick replication of code snippets or configuration settings without the risk of losing the original data.

Other options center around functions that do not align with the primary purpose of the COPY command. For instance, deleting lines or cutting them suggests a removal process rather than duplication. Additionally, creating backups involves a different mechanism for data preservation that is distinct from simply copying content to a buffer. Understanding the specific operation of the COPY command is crucial for effectively manipulating text and code within various programming environments.