What defines an uncontrolled intersection?

Answer: C — An intersection without stop signs, yield signs, or traffic lights

An uncontrolled intersection is defined as one that does not have stop signs, yield signs, or traffic lights to regulate the flow of traffic. This type of intersection relies on the drivers' judgment and the rules of the road to manage right-of-way. At an uncontrolled intersection, it is essential for drivers to be particularly vigilant and cautious, as there are no signals or signs to guide them, which can lead to confusion and potential accidents. Drivers must yield to any traffic that has the right-of-way, which usually includes vehicles already in the intersection or those coming from their right. In contrast, intersections with traffic lights or signs are controlled, providing clear instructions for when to stop or proceed, thereby reducing ambiguity. An intersection that is merely busy does not define its control status; instead, it could be busy regardless of whether it has any regulatory signage or signals.