The correct answer is B. Vitamin B and Vitamin C are water soluble.
Vitamins are essential nutrients that the body needs to function properly. They are divided into two categories: water soluble and fat soluble. Water soluble vitamins are vitamins that dissolve in water and are not stored in the body. This means that they need to be consumed regularly in order to maintain adequate levels. Fat soluble vitamins are vitamins that dissolve in fat and are stored in the body. This means that they do not need to be consumed as frequently as water soluble vitamins.
Vitamin A is a fat soluble vitamin that is important for vision, skin, and immune function. Vitamin B is a water soluble vitamin that is important for energy production, metabolism, and nerve function. Vitamin C is a water soluble vitamin that is important for the immune system, wound healing, and collagen production. Vitamin D is a fat soluble vitamin that is important for bone health and calcium absorption. Vitamin K is a fat soluble vitamin that is important for blood clotting and bone health.
Of the vitamins listed in the question, only Vitamin B and Vitamin C are water soluble. Therefore, the correct answer is B.