Which of the following individuals is exempt from the license requirement?

The correct answer is based on specific exemptions typically outlined in traffic regulations. Individuals operating certain types of machinery, such as road machines, often do not require a standard driver's license when using equipment specifically designed for construction or maintenance on highways. This exemption is in place because the operation of a road machine is specialized work that might not be covered under standard licensing requirements for passenger vehicles.

In contrast, residents who hold a foreign license are usually required to have their license recognized or converted to meet local requirements, rather than being exempt from needing a license at all. Similarly, professional drivers with a Commercial Driver's License (CDL) must have that specific license to operate commercial vehicles; they are not exempt from the requirement. Lastly, individuals below the age of 16 typically cannot obtain a driver's license and are also not exempt from the licensing requirement because they are legally not eligible to be licensed drivers. Thus, operating a road machine on a highway is an accepted exemption under traffic laws, making that the correct choice.