The correct answer is A). A thermometer that is used to measure the temperature of the food must be accurate to +/-2°F or +/-1°C and the ones that are measuring air temperature in food-storage must be accurate to +/-3°F or +/-1.5°C. These temperatures are the ones that are the most accurate ones and that is why this is a correct answer.
B, C, and D are incorrect even though they are used, they cannot measure the exact temperature of the food.
if you want to stay healthy you always have to eat good foods and go to the gym to stay in shape.if you eat good foods like your fruits and vegetables those are good for you body and help you too.