What does a trademark protect? 

An invention. 

A secret formula. 

A work of art. 

The look, shape and feel of a product. 

Logos, names and brands.

A trademark primarily protects logos, names, and brands. It is a form of intellectual property that is used to identify and distinguish a company's products or services from those of others in the market. While a trademark may indirectly protect the look, shape, and feel of a product if they are associated with the brand, it does not protect inventions, secret formulas, or works of art.

A trademark protects logos, names, and brands. To find this answer, you can start by understanding what a trademark is. A trademark is a form of intellectual property that gives legal protection to logos, names, and brands. It is used to distinguish the goods or services of one company from others in the marketplace. Trademarks are typically registered with the relevant government agency, such as the United States Patent and Trademark Office (USPTO). Therefore, in the given options, the correct answer is "Logos, names, and brands."

A trademark primarily protects logos, names, and brands. It is specifically designed to protect the distinctive characteristics that distinguish a company's products or services from those of others. This includes protecting the look, shape, and feel of a product, as well as any unique names or logos associated with it. Trademarks do not protect inventions, secret formulas, or works of art, as those are covered by other forms of intellectual property protection such as patents, trade secrets, and copyright, respectively.