The food sanitation rules require someone at your restaurant to:
a. know the rules and be in charge of the operationb. be available to take food orders and prepare foodc. be in charge during the hour of operation
d. know the food sanitation rules

The correct answer is letter a, know the rules and be in charged of the operation. It is because food sanitation requires a person to know about the rules and to be in charged of the operation by applying those rules as he or she works. It is a guide line that will ensure safety of the food that is going to be served and to make sure that the practices that is being done during the operation is safe for the food to be served.