Who qualifies as a dependent in the context of Utah driving regulations?

The correct answer identifies a spouse and any unmarried children under the age of 21 as dependents in the context of Utah driving regulations. This is grounded in the understanding that dependents typically refer to individuals who rely on a primary driver for support and care.

In family and driving contexts, minors—specifically those under 21—and spouses are classified as dependents because they often reside in the same household and may be covered under the same insurance policy. This classification allows for streamlined processes regarding driving permits, licenses, and insurance coverage. The inclusion of unmarried children reflects the notion that dependents are typically those who are not yet fully independent.

In contrast, options that include scenarios involving married children or adult children do not align with the definition of dependents as they are often seen as fully independent, which means they would not rely on the primary driver in the same manner. Thus, the correct choice encapsulates the intended scope regarding who qualifies as a dependent under Utah's driving regulations, ensuring clarity in legal and insurance matters related to driving.