On a four-lane divided roadway, a solid yellow line typically marks?

On a four-lane divided roadway, a solid yellow line specifically indicates the left edge of the pavement. This marking helps delineate the boundaries of the travel lanes and provides a visual guide for drivers, particularly in areas where there is a divided highway or when the lanes are separated from oncoming traffic. Solid yellow lines are used to signify prohibited passing in one or both directions.

In the context of the other options, a solid yellow line does not mark the right edge of the pavement, as that is typically identified by a solid white line. It also does not function as a center line for oncoming traffic; instead, a broken yellow line would indicate that passing is permitted in either direction. Furthermore, a solid yellow line definitely does not designate a lane for passing, as passing is generally prohibited when such a line is present.