Question

vitamin d is needed by the body to __________. a form keratin b absorb calcium from food c make blood cells d help the skin tan

Explanation:

Vitamin D helps the body absorb calcium from food, which is crucial for bone - health. Keratin formation is not related to vitamin D. Blood - cell production is mainly related to vitamins like B12 and folate. Skin tanning is related to melanin production and UV exposure, not directly to vitamin D.

Answer:

B. absorb calcium from food