Which of the following is a name, symbol, or slogan with which a product is identified?

A trade secret is confidential business information (such as formulas or processes) that provides a competitive edge, not a public-facing identifier like a name or logo.

A patent protects inventions and grants the inventor exclusive rights to make, use, or sell the invention for a limited period, not to identify a product by name or symbol.

Copyright protects original creative works such as literature, music, and art, not names, symbols, or slogans used to identify products.

A trademark is a form of intellectual property protection that covers names, symbols, slogans, and logos associated with a product or service. It gives the owner exclusive rights to use the mark in commerce and prevents others from using confusingly similar marks. Trademarks are registered with agencies such as the USPTO and are denoted by the TM or registered symbol.