A flashing red light or two alternately flashing red lights on a traffic light...
A)allow passage with caution.
B)require moderating speed before passing.
C)temporarily prohibit passage.Correct
A flashing red light or two alternately flashing red lights on a traffic light **temporarily prohibit passage**. This signal indicates that you must stop your vehicle and wait for the light to change, since it is not safe to continue. Unlike a steady red light, the flashing one warns that the prohibition is temporary, but you must still respect the stop order.