At night, when there is a bright headlight from an oncoming vehicle, what should the driver do?

At night, when there is a bright headlight from an oncoming vehicle, what should the driver do?

1. I must slow down, look towards the roadside, and drive as far right as possible.
2. I don't need to slow down because I lower the sun visor, as I believe the oncoming vehicle can also see me.
3. If the car's lights are too bright, I must flash my high beams back at that vehicle.

Correct answer

I must slow down, look towards the roadside, and drive as far right as possible.

This is the correct answer for the Cambodian driving theory test. Questions are drawn from the official Ministry of Public Works and Transport sign library and road rules.