Deficiency of Vitamin K causes impairment of....
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Blood clotting
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Nervous system
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Digestive system
A
Correct answer
Explanation
Vitamin K is a critical cofactor for the carboxylation of glutamic acid residues in several blood-clotting proteins, such as prothrombin. A deficiency in Vitamin K leads to impaired blood coagulation, resulting in excessive bleeding. It does not directly impair the nervous or digestive systems.