What does a solid yellow line on the road indicate?

Answer: C — No passing allowed

A solid yellow line on the road indicates that no passing is allowed. This marking serves to signal drivers that the road conditions or traffic patterns make it unsafe to overtake another vehicle in that area. It’s often found in places where visibility is limited, such as curves, or in sections where there is a high volume of oncoming traffic. This rule is in place to enhance safety for all road users, as passing in such areas can lead to dangerous collisions. In contrast, other markings like broken yellow lines indicate that passing is permitted under certain conditions, which is not the case with a solid yellow line. Therefore, understanding the meaning of road markings is crucial for maintaining safety on the roads.