Would You Recommend β-Carotene Supplementation to a Smoker to Decrease

Would you recommend β-carotene supplementation to a smoker to decrease the risk of lung cancer?

A) Yes-β-carotene can quench singlet oxygen.
B) Yes-smoking increases free radical formation; β-carotene can decrease free radicals.
C) No-β-carotene supplements may be harmful to smokers and their use is not advised for the general public.
D) No-β-carotene supplements can cause vitamin A toxicity and liver cirrhosis.

Correct Answer:

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