Final answer:
A formulary is a list of medicines that are reimbursed or covered by a third-party payer. It guides healthcare providers and patients in making decisions about coverage.
Step-by-step explanation:
The correct answer is B) Formulary. A formulary is a list of medicines that are reimbursed or covered by a third-party payer, such as an insurance company or government program. It is used to guide healthcare providers and patients in making decisions about which medications are covered and at what level of coverage. The formulary may include information about generic and brand-name drugs, as well as the specific requirements for coverage, such as prior authorization or step therapy.