What must you provide for in winter?

The correct combination of choices 1 and 2 is essential to ensure safety during winter conditions.

Choice 1 states that steps must be free of snow and ice, which aligns with the German traffic regulation aimed at preventing accidents caused by slips and falls. Keeping walkways clear is crucial to avoid injuries and ensure safe access.

Choice 2 emphasizes that the floor must remain slip-proof. This is also a key aspect of maintaining safety during winter, as a slip-proof surface can prevent accidents in icy conditions.

While choice 3 discusses the need to keep side windows from fogging, it is not directly related to the specific responsibilities for keeping driveways and steps safe in winter. Therefore, understanding and adhering to the first two points is vital for compliance with German traffic rules and promoting overall safety.