Final answer:
Drivers who are below the age of 18 must hold the instructional permit for a certain period of time before being issued a full driver's license, according to the Minnesota Graduate Driver's License Program.
Step-by-step explanation:
According to the Minnesota Graduate Driver's License Program, drivers who are below the age of 18 must hold the instructional permit for a specific duration of time before they can be issued a full driver's license. The exact duration of this period may vary depending on the state's specific laws and regulations. In Minnesota, for example, the instructional permit must be held for at least six months before a full driver's license is granted.