The correct answer is C. Carbohydrates.
Sugar is a type of carbohydrate. Carbohydrates are a group of organic compounds that are made up of carbon, hydrogen, and oxygen atoms. They are the main source of energy for the body. Carbohydrates are found in foods such as bread, pasta, rice, potatoes, fruits, and vegetables.
Lipids are a group of organic compounds that are made up of carbon, hydrogen, and oxygen atoms. They are a major source of energy for the body. Lipids are found in foods such as butter, oil, meat, and dairy products.
Nucleic acids are a group of organic compounds that are made up of carbon, hydrogen, oxygen, nitrogen, and phosphorus atoms. They are essential for the storage and transmission of genetic information. Nucleic acids are found in the nucleus of cells.
Therefore, sugar is a component of carbohydrates, not lipids or nucleic acids.