Match Column-A with Column-B.

i-b, ii-c, iii-a, iv-d

The correct answer is Option (4) – i-b, ii-c, iii-a, iv-d

Here's the matching for Column-A with Column-B:

i. Vitamin A - b. Retinol

ii. Vitamin B12 - c. Cobalamin

iii. Vitamin C - a. Ascorbic acid

iv. Vitamin D - d. Ergocalciferol

Vitamins are organic compounds that are essential for various physiological functions in the body. Each vitamin has its own specific function and is important for maintaining overall health and preventing various diseases.

Here's the explanation for each matching:

i. Vitamin A - It is also known as Retinol. Vitamin A is essential for vision, immune function, skin health, and cell growth.

ii. Vitamin B12 - Also known as Cobalamin, Vitamin B12 plays a crucial role in the formation of red blood cells, neurological function, and DNA synthesis.

iii. Vitamin C - This vitamin is also referred to as Ascorbic acid. Vitamin C is known for its antioxidant properties and is important for collagen synthesis, immune function, and wound healing.

iv. Vitamin D - Commonly known as Ergocalciferol, Vitamin D is essential for calcium absorption, bone health, and immune function. It is often called the "sunshine vitamin" because the body can produce it when the skin is exposed to sunlight.

These alternative names are often used interchangeably with the corresponding vitamins in scientific literature and nutritional discussions.