Property service charges should follow the principle of (). A. Principle of low fees B. Principle of reasonableness C. Principle of publicity

Property service charges should follow the principles of rationality, openness and adaptability between fees and service levels, and distinguish the nature and characteristics of different properties. Owners and realty service enterprises shall, in accordance with the charging standards for realty services formulated by the competent price department of the State Council in conjunction with the competent construction department of the State Council, stipulate in the realty service contract.