Which of the following is an example of a trade name?

A trade name, often referred to as a brand name, is a name given to a drug by its manufacturer for marketing purposes. This is distinct from its generic name, which is the non-proprietary name, and is typically the same across different manufacturers.

In this case, "Accupril" is the trade name for the medication quinapril, making it the correct example. Trade names are usually distinctive and designed to be memorable, facilitating easier identification by healthcare providers and patients.

The other options represented here involve terms that do not fit the definition of a trade name. "ACE Inhibitor" refers to a class of medications rather than a specific product name. "Lisinopril" is a generic name for a medication used to treat hypertension, and "quinapril" is also a generic name for another ACE inhibitor. These generic names are used universally regardless of the manufacturer and do not represent the branding used by pharmaceutical companies for marketing their products.