Answer: C
Nutrition feeding and service plan should include "maintenance of food preparation areas".
Proper maintenance (sanitation) of food preparation areas is very important. it ensures that the area where the food preparation is taking place should be cleaned regularly to kill the bacteria or other pathogens from the surface area. Also It is to be very important to clean the food preparation equipment, cutting boards, tools, etc., on regular basis.
Maintenance of suitable temperature at food preparation area is also another important criteria.
