When cooling food the food must be cold from what?
A. 135° to 50° within two hours, and 135° to 41° within six hours
B. 135° to 70° within four hours, and 135° to 41° within six hours
C. 135° to 50° within four hours, and 135° to 41° with in six hours
D. 135° to 70° within two hours, and 135° to 41° within six hours
