The correct answer 'Paved surface ends ahead' is appropriate because the sign depicted is a standard warning sign used to notify drivers that the pavement they are currently traveling on will end, and there may be a transition to a gravel or unpaved road. This understanding is crucial in Ontario, especially in rural areas where such transitions may be frequent. Drivers should reduce speed and prepare for potential changes in traction and control when approaching an unpaved section. It's important to maintain a firm grip on the steering wheel and drive cautiously to prevent accidents.