Which of the following exist to help consumers know what products they're buying?answerCopyrightsPatentsFair UseTrademarks

Trademarks exist to help consumers know what products they're buying. They are distinctive signs or symbols used by businesses to identify their goods or services and to distinguish them from those of other businesses. This helps consumers to recognize and choose products based on their quality, reputation, or other characteristics associated with the trademark.

Copyrights, patents, and fair use are also intellectual property rights, but they serve different purposes. Copyrights protect original works of authorship, such as books, music, and art. Patents protect inventions and innovative processes. Fair use is a doctrine that allows limited use of copyrighted material without requiring permission from the rights holders. These do not directly help consumers identify products they're buying.