Which of the following is classified as a micronutrient?

Micronutrients are essential nutrients that the body needs in small amounts to function properly and maintain health. These include vitamins and minerals, which play critical roles in various bodily processes. Vitamins, for instance, are crucial for immune function, energy production, and the synthesis of DNA. They do not provide energy like macronutrients (carbohydrates, proteins, and fats) do, but they are vital for preventing deficiencies and supporting overall health.

In contrast, carbohydrates, proteins, and fats are classified as macronutrients. They are required in larger quantities because they primarily provide energy or serve as building blocks for the body. Each of these macronutrients has its unique functions, such as carbohydrates being the body's main energy source, proteins being important for muscle repair and growth, and fats providing energy and supporting cell structure.

Focusing on vitamins as the correct option exemplifies the distinction between micronutrients and macronutrients. Recognizing this classification helps in understanding dietary needs and the importance of consuming a balanced diet rich in both macronutrients and micronutrients for optimal health.