The United States Code Annotated:

The United States Code Annotated is a comprehensive codification of federal statutes that includes annotations, which are explanatory notes, references to case law, and other relevant legal materials. One of its significant features is the general index, which allows users to efficiently locate specific sections or topics within the vast array of federal laws. This index serves as a valuable tool for legal researchers and practitioners who need to navigate the legal landscape quickly and effectively.

Having a general index is particularly important because it improves the usability of the Code, making it easier for attorneys, judges, and legal scholars to find pertinent statutes related to their cases or research topics. This feature exemplifies how the United States Code Annotated enhances access to legal information by organizing the content in a manner that supports efficient research.

In contrast, the other options present inaccuracies regarding the United States Code Annotated. While it is available in print, it is also accessible online, making option about the print limitation incorrect. The mention of updates is misleading as the Code is regularly updated to reflect new laws and amendments. Additionally, the reference to only containing past laws is false since the Code contains both current and past statutes, showcasing the evolution of federal law over time.