344.At a railway level crossing equipped with barriers or managed by a guard,which of the following is incorrect? (A) When the warning bell rings, flashingsignals are activated, barriers begin to lower, or the guard signals to stop, thedriver must stop immediately and only proceed after the barriers are raised orthe guard signals to go. (B) If the barriers are not lowered or the guard doesnot signal to stop, the driver must still look and listen for trains from bothdirections before proceeding. (C) After the barriers are raised, the drivershould pass through quickly without looking left or right.