Which term best describes Tina, hired by David as a full-time office manager?

The term that best describes Tina as a full-time office manager hired by David is "employee." This classification is significant because it establishes the nature of the working relationship, which involves a formal agreement where David, as the employer, typically has control over Tina's work hours, job duties, and methods of work. Employees are entitled to certain benefits and protections under labor laws, such as minimum wage, overtime pay, and unemployment insurance, which may not apply to other classifications like independent contractors or consultants.

In contrast, independent contractors operate under a different arrangement where they provide services to clients but maintain greater control over how those services are delivered. Voluntary workers often contribute their time and skills without monetary compensation or the expectation of a formal job role, while consultants are usually brought in for their expertise on a temporary basis, often to address specific issues or projects.

Tina's full-time status indicates a commitment to her role within the organization, reinforcing her classification as an employee rather than falling into one of the alternative categories that involve less direct oversight or a more flexible arrangement regarding work.