What is the name for a business that copies, distributes, and sells works by an author?

The term that best describes a business responsible for copying, distributing, and selling works by an author is "Publisher." A publisher plays a critical role in the publishing industry; they facilitate the production and dissemination of literary works, helping authors reach broader audiences. This can include physical books, digital content, and various other formats.

Publishers typically handle various responsibilities, including editing, design, marketing, and distribution, which are essential for bringing an author's work to market. They operate under legal frameworks that respect copyright, ensuring that authors maintain their rights while also profiting from their intellectual property.

In contrast, the other terms do not fit this definition: Prototyping refers to building preliminary models or versions of products, mainly in the context of design and development. Piracy involves the unauthorized reproduction and distribution of copyrighted material, which is illegal. Plagiarism refers to the act of using someone else's work or ideas without proper attribution, which is an ethical issue rather than a business function.