How will the helmet visor affect riding in the dark?

1. AA scratched or dirty helmet visor makes riding in the dark easier.
2. BA scratched or dirty visor scatters the light rays and considerably impairs the quality of vision in the dark.
3. CA visor annoys the rider - even if the rider does not admit it.
4. DRiding a two-wheeled vehicle without a visor always contributes to improving vision in the dark.

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