The correct option is A Vitamin B complex
Fat-soluble vitamins are those which are similar to oil and they do not dissolve in water. Vitamin A, D, E, K are the fat soluble vitamins. Vitamin B complex is not a fat soluble vitamin because it is water soluble. It is a pack of all eight vitamins i.e vitamin B1, B2, B3, B5, B6, B7, B9 and B12. As it is water soluble our body doesn't store it and hence body must be served daily with vitamin B complex.