The correct option is C Vitamin D
Vitamin D is also called as Sterol Calciferol. There are ten types of vitamin D. The common forms are D2 and D3. The vitamin D is antirachitic, essential for absorption and retention of calcium and phosphorous, growth and maintenance of bones. Its is more of a hormone than a vitamin as it can be synthesized in human body on exposure to sunshine. Other rich sources of vitamin D are cod and shark liver oil, chicken, egg yolk, milk and butter.