Iron, iodine and zinc can be considered as which of the following?

Micronutrients

The correct answer is Option (2) – Micronutrients

Iron, iodine, and zinc are classified as micronutrients. Micronutrients are essential nutrients required by organisms in relatively small quantities for various physiological functions. While macronutrients are required in larger amounts and include nutrients like carbohydrates, proteins, and fats, micronutrients are needed in smaller quantities but are equally vital for health and proper functioning of the body. Iron, iodine, and zinc play crucial roles in metabolism, enzyme function, hormone production, and immune system regulation. Therefore, they are considered micronutrients rather than macronutrients.