Correct Option: C

Vitamin K is a group of structurally similar, fatsoluble vitamins that are needed for the post translational modification of certain proteins required for blood coagulation and in metabolic pathways in bone and other tissue. They are 2-methyl-1,4naphthoquinone (3-)derivatives. This group of vitamins includes two natural vitamers: vitamin K₁ and vitamin K₂. Vitamin K₁, also known as phylloquinone, phytomenadione, or phytonadione, is synthesized by plants, and is found in highest amounts in green leafy vegetables because it is directly involved in photosynthesis. It may be thought of as the “plant form” of vitamin K. It is active in animals since animals can easily convert it to vitamin K₂.