The correct answer is A. Dietary reference intake it helps to ensure that there is right balances of nutrients.
Dietary reference intake is termed as a nutrition system which is being recommended from institute of medicine. The dietary reference intakes include Adequate intakes, estimated average requirement, tolerable upper intake, recommended dietary allowance.
The main purpose of dietary reference intake is for healthy population which is used for planning and assessing diets.
Some of the nutrients which have dietary reference intake include biotin, choline, niacin, thiamin, and vitamin A.