Which of the following are the three main types of carbohydrates?

The three main types of carbohydrates are sugars, starches, and fiber. This classification is based on their structure and how they function in the body.

Sugars, also known as simple carbohydrates, include monosaccharides and disaccharides, which are quickly absorbed by the body and can provide rapid energy. Starches are complex carbohydrates made up of long chains of glucose molecules, serving as a primary energy source that the body breaks down more slowly. Lastly, fiber is a type of carbohydrate that is not digested by the body but plays a crucial role in digestive health by promoting regular bowel movements and helping to control blood sugar levels.

Understanding this classification is essential for appreciating how different carbohydrate types affect nutrition and metabolism, making option C the correct answer.