What best describes a concealed entrance?

A concealed entrance is best described as a driveway not clearly visible from the road. This definition captures the essence of what a concealed entrance is, which can pose a hazard to vehicles and pedestrians because drivers may not see the entrance until they are very close to it. This lack of visibility can lead to unexpected stops or turns, creating potential safety risks.

In contrast, large open parking lots, clearly marked road signs, and pedestrian walkways have distinct characteristics that do not fit the concept of concealment. Parking lots are generally designed for visibility and accessibility, road signs are intended to provide clear guidance and information to road users, and pedestrian walkways are areas designated for foot traffic that are distinctly marked. Therefore, the option describing a driveway that is hard to see aligns directly with the definition of a concealed entrance.