When is a driver permitted to turn right on a red traffic signal?

Answer: B — After stopping and checking for crossing traffic

A driver is permitted to turn right on a red traffic signal after coming to a complete stop and checking for crossing traffic. This procedure is essential for ensuring safety; it allows the driver to assess the situation, including any pedestrians crossing the street and vehicles that may be approaching from either direction. The requirement to stop ensures that the driver has an opportunity to evaluate the traffic conditions and proceed only when it is safe to do so. While it's important to note that signage can dictate whether or not a right turn on red is allowed, the fundamental rule is to stop first and yield to any oncoming traffic or pedestrians. This practice promotes responsible driving behaviors and helps prevent accidents.