Which office is primarily responsible for copyright information?

The correct answer is the Copyright Office, which is a division of the Library of Congress. This office is specifically tasked with overseeing the registration of copyrights, managing copyright records, and providing information and support related to copyright law and protections. It serves as the government entity where creators can formally register their works to gain legal recognition and protection, thus helping to prevent unauthorized use of their intellectual property.

In contrast, the U.S. Patent Office focuses on patents, which are legal protections for inventions and processes, not for creative works like music, literature, and visual arts. The Patent and Trademark Resource Center primarily functions as a support resource for businesses to navigate patent and trademark issues, also not directly overseeing copyright matters. The Small Business Administration provides assistance and resources for small businesses but does not engage in intellectual property registrations or matters. Therefore, the Copyright Office is unequivocally the right choice for inquiries and functions related to copyright.