U.S. regulations mandate the fortification of many products with folic acid because ________.
A. every pregnant woman should receive at least 4 milligrams of folic acid each day in order to avoid neural tube defects
B. folic acid provides many benefits early in pregnancy, when many women may not be aware that they are pregnant
C. vitamin supplements of folic acid are not widely available
D. folic acid provides a variety of benefits with little risk of harm from excessive intake
Answer: B
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What will be an ideal response?
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