You must lower the window to hear the train horn before you can decide to pass or not, to avoid an unfortunate accident.
Answer 2 is incorrect because it is unsafe to pass a railway
Pause the vehicle at a position at least 5m from the railway, lower the door glass, turn off the audio devices on the vehicle, observe, if no train passes, shift to low gear, increase the throttle slightly through the railway.
At a position at least 5m from the railway, observe ahead, if there is no train running, increase the gear, increase the speed for the vehicle to quickly pass the railway.