A.
It is most important to ensure that the people tasked to certain jobs are educated and skilled on doing them.
Hope that helps!
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Answer: Vitamins
Explanation:
Vitamins play a very vital role in the human system, they are considered as essential nutrients which perform hundreds of roles in the body, some of those roles are building the bones, healing wounds, strengthen the immune system, repair damaged cells and conversion of food to energy. It's function spans into 13different category.
The eating disorder of this is most likely anorexia nervous
