Sean has carpal tunnel syndrome. A few months ago, he began taking megadoses of vitamin B-6, when he read that the vitamin can cure the disorder. Today, Sean reported to his friends that his hands were feeling numb and his walking is unsteady. Based on this information, Sean should ________.
A. stop taking vitamin B-6, because he is showing signs and symptoms of vitamin B-6 toxicity
B. continue taking the megadoses of vitamin B-6, because his body needs more time to heal
C. discontinue taking vitamin B-6, because his body does not require the micronutrient
D. increase his vitamin B-6 intake, because the numbness and unsteadiness are signs that the treatment is working
Answer: A
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