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Which vitamin is required for the clotting of blood ?

  • A.Vitamin A
  • B.Vitamin C
  • C.Vitamin D
  • D.Vitamin K

Answer: D

Correct answer: Vitamin K

Vitamin K is needed to synthesise prothrombin and several other clotting factors in the liver. A deficiency prolongs bleeding, which is why newborn infants are routinely given a dose at birth.

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