Correct answer
Switch from main beam to dipped beam.
Switch immediately from main beam to dipped beam as soon as you identify a possibility of dazzling, under Article 102. Do not wait until the other driver has been blinded. This also applies to vehicles ahead whose mirrors may reflect your lights, and other road users. If you are dazzled, reduce speed as necessary, even to a safe stop; that response does not replace dipping your own lights to avoid dazzling others.
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Keep main beam until the other driver is already dazzled.
Slow down but keep main beam even if it dazzles.
Switch from main beam to dipped beam.
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