Question

to reduce the likelihood of giving birth to babies with neural tube defects, women of childbearing age should obtain adequate
folate.
biotin.
cellulose.
niacin.

Explanation:

Folate (a form of vitamin B9) is crucial for DNA synthesis and cell division. During early pregnancy, it helps in proper neural tube development. Neural tube defects occur if the neural tube (which forms the baby's brain and spinal cord) doesn't close properly. Adequate folate intake before and during early pregnancy reduces the risk of such defects. Biotin is involved in energy metabolism and hair/skin health. Cellulose is a dietary fiber. Niacin (vitamin B3) is related to energy production and skin/nerve health. None of these have the specific role in preventing neural tube defects like folate.

Answer:

folate.