Class B operator primary responsibilities included: select options A) Maintenance of records onsite, continues observation of fueling operation and regulatory notification of new or closed tanks B) Class C operator training maintaining equipment performance standards; release detection and tank registration C) release detection, cathodic protection spill and overfill prevention are in place and functioning testing records are retained and available and class c operators are trained and onsite during facility operations D) Release detection; spill prevention and financial responsibility and class c operators are trained and on site during facility operations