__________ are used to mark the right edge of the pavement.

The correct answer is solid white lines, which serve an important function in road markings. These lines are specifically used to indicate the right edge of the pavement, providing drivers with a visual guide that helps maintain lane discipline and assures them of the boundary of the roadway.

Solid white lines signify that crossing over them is discouraged, as it could lead to dangerous situations or accidents, especially in areas where the edge of the road may soon transition into shoulder or other potentially hazardous zones. This by extension enhances safety for both the drivers and pedestrians by clearly demarcating where the road ends.

In contrast, broken or dashed white lines indicate that lane changing is permitted, while solid yellow lines are used to separate traffic moving in opposite directions and suggest that passing is not advisable when they are solid. Likewise, broken or dashed yellow lines allow for passing when it is safe to do so, but are not relevant to indicating the edge of the pavement on the right side.