Deficiency of vitamin D in adults causes ____.
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osteoporosis
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osteoblast
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osteomalacia
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osteoma
C
Correct answer
Explanation
Vitamin D deficiency in adults causes osteomalacia, a condition of soft bones due to impaired bone mineralization. Osteoporosis is bone loss from aging, osteoblast is a bone-forming cell, and osteoma is a bone tumor. The adult equivalent of rickets is osteomalacia.