The nervous system and cardiovascular system
The definition of hygiene says cleanliness. A does not have to do with that. B does because keeping that clean prevents food diseases like salmonella. C has nothing to do with hygiene. D has nothing to do with being clean. So the answer would be B. I hope this helps!
When working with food, personal items such as cell phone should be kept away from where food is stored and prepared.
We can use the formula for the area of circle which is A = πr².
Find the diameter by dividing 7 and 2 which you get 3.5.
Substitute with the given values; A = (3.14)(3.5)².
Solve for the exponent; A = (3.14)(12.25).
Multiply; A = 38.465.
~Good luck
