The correct answer is option 2: Vit. B and Vit. C.

Vitamins are classified into two main categories: water-soluble and fat-soluble. Water-soluble vitamins dissolve in water and are easily absorbed by the body. On the other hand, fat-soluble vitamins require fat for absorption.

Vitamin B complex consists of eight different vitamins, including B1 (thiamine), B2 (riboflavin), B3 (niacin), B5 (pantothenic acid), B6 (pyridoxine), B7 (biotin), B9 (folic acid), and B12 (cobalamin). These vitamins are water-soluble and play various roles in energy metabolism, nervous system function, and red blood cell production.

Vitamin C, also known as ascorbic acid, is another water-soluble vitamin. It acts as an antioxidant, helps in collagen production, enhances iron absorption, and supports the immune system.

Therefore, the correct answer is option 2: Vit. B and Vit. C, as both of these vitamins are water-soluble.