Answer
The statement which is true regarding the use of refrigerants is; A. Records of the dates and quantities of refrigerant recovered and recycled are unnecessary
Explanation
A refrigerant is a substance in fluid form used in a heat pump and refrigeration cycle. A refrigerant absorbs heat from the environment and provides air conditioning when combined with a compressor or evaporator. Technicians are advised to do better recapture, recycle and dispose of refrigerant safely.