A taxi driver who is required to wear glasses or optical devices:

1. AMust make sure that during night driving hours he has the glasses or contact lenses in his pocket.
2. BMust keep in the vehicle while driving an additional pair of glasses or contact lenses.
3. CMust keep at the taxi rank an additional pair of glasses or contact lenses.
4. DMust make sure that during daytime driving hours he has suitable glasses or contact lenses in his pocket.

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