Roads marked with double solid yellow lines indicate that passing is:

Roads marked with double solid yellow lines indicate that passing is not permitted in either direction. This marking serves to enhance safety by clearly indicating to drivers that overtaking or passing another vehicle is prohibited due to potential hazards or limited visibility in that area. The double solid lines are a visual cue that warns drivers there are conditions that may make passing dangerous, such as curves, hills, or intersections.

Choosing to ignore this marking can lead to dangerous situations, including collisions, which is why it is crucial for drivers to adhere to these regulations. The other options suggest scenarios where passing may be allowed under certain conditions, which contradicts the fundamental rule established by double solid yellow lines.