Answer:
C. 400 micrograms per day for adults.
Step-by-step explanation:
According to the National Institute of Health (NIH), folate is vitamin B-9, also known as folic acid. Folate functions as coenzymes, that is, as metabolic intermediary, helping to achieve the catalytically active form of the enzyme, through which release energy for metabolic purposes.
In addition, NIH establishes that the proper daily dose for adults is 400 micrograms per day. This number should be between 400 and 800 if refers to a women who is in early pregnancy, because lacking folate leads to birth defects.