Multiple Choice
After her last check-up, Harriet was informed that her active Vitamin D levels were low. Which of the following conditions may explain why this is so?
A) Melanin production has increased due to sun exposure, reducing Vitamin D activation.
B) Liver dysfunction has reduced the conversion of cholecalciferol to the intermediate for calcitriol production.
C) An increase in Vitamin D absorption at the intestines has overwhelmed the homeostasis of vitamin production at the kidneys.
Correct Answer:

Verified
Correct Answer:
Verified
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