A traffic light with a horizontal white line on a black background...
A)allows the passage of buses and trams.
B)allows buses and trams to turn right and left.
C)prohibits the passage of scheduled buses and trams.Correct
# Explanation: Traffic light with horizontal white line
The traffic light with a horizontal white line on a black background is a **specific restrictive signal for public transport**. This signal **prohibits the passage exclusively to scheduled buses and trams**, requiring them to stop even though other vehicles may continue circulating. It is a traffic control measure affecting only these types of collective transport vehicles.