Final answer:
A 'FINES DOUBLE' sign is usually found in work zones to indicate that traffic violation fines are increased to improve safety for road workers. The correct answer is option D.
Step-by-step explanation:
A rectangular black-lettered sign that says 'FINES DOUBLE' is typically seen in work zones. This sign is used to alert drivers that fines for traffic violations are higher in work zones, primarily to enhance safety for road workers and the driving public. This measure is taken due to the increased risk in areas where road work is being conducted, and where workers are in close proximity to moving vehicles.
In hospitals, you would not typically find 'FINES DOUBLE' signs as these areas are not associated with road work or construction. No-parking areas might have signage indicating fines or towing consequences, but they do not typically indicate doubled fines associated with work zones.
Circular intersections might have various signs for navigation or speed control, but they are also not places where 'FINES DOUBLE' signs are found. These signs are specifically designed to catch the driver's attention and make them aware that the area they are entering has enhanced penalties for any infractions, as a deterrent against unsafe driving behaviors that could harm workers or other drivers.