Correct answer
The position lights and the dipped beam or main beam.
In visibility-reducing fog without front fog lamps, use position lights with dipped or main beam as allowed by conditions and applicable rules. Main beam is not always prohibited, but avoid dazzling; reflection in fog may worsen vision, so dipped beam is usually preferable. Position lights alone are insufficient even by day.
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The dipped beam and the hazard warning lights.
The position lights and the dipped beam or main beam.
The position lights and the dipped beam, and never the main beam.
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