A center lane between opposing lanes of traffic may be designated for what purpose?

Answer: B — Left turns only

The designation of a center lane between opposing lanes of traffic specifically for left turns is a common practice to enhance safety and improve traffic flow. This center lane, often marked with specific lane markings and signage, allows drivers to prepare for a left turn without obstructing the flow of oncoming traffic. By providing a designated space for left turns, this lane helps prevent conflicts that can arise when vehicles waiting to turn left block the lanes of oncoming traffic, thereby reducing the likelihood of accidents. The other options do not align with the typical purpose of a center lane. Overtaking other vehicles is generally done in designated passing lanes or on highways where the flow of traffic permits. Right turns are typically executed at intersections rather than in a designated lane in the center. Parking is regulated in different areas and is not appropriate for the center lane where turning movements are intended.