Practise Question Bank Filters#7457 3p SpecialistB, B1 You are allowed to use snow chains only when: Ayou drive a vehicle in the period from the beginning of December till the end of February, irrespective of whether the road is covered with snow.Bthe air temperature is lower than 0 Celsius degrees, irrespective of whether the road is covered with snow.Cthe road is covered with snow.