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# With which of the following disease is Vitamin K associated?

$\begin {array} {1 1} (A)\;\text{Rickets} & \quad (B)\;\text{Scurvy} \\ (C)\;\text{Sore throat} & \quad (D)\;\text{Coagulating property of blood} \end {array}$

Vitamin K is a group of structurally similar, fat-soluble vitamins that the human body needs for post-translational modification of certain proteins required for blood coagulation, and in metabolic pathways in bone and other tissue. They are 2-methyl-1,4-naphthoquinone (3-) derivatives. This group of vitamins includes two natural vitamers : vitamin $K_1$ and vitamin $K_2$
Ans : (D)