Carbohydrates are essential to provide energy for the body because: a. they provide ketone bodies, which are the preferred energy of the body's cells. b. fats are not able to provide any energy to the cells. c. the glucose that is produced from them is vital to fuel most of the body's cells. d. proteins are available only to provide building block materials for tissues. e. ketone bodies produced from proteins do not provide adequate energy for cells.

Option (c).

Explanation:

Biomolecules are the important organic molecules that re present in the body of living organism. Four biomolecules of living organism are carbohydrates, proteins, lipids and nucleic acids.

Carbohydrates are the made of the polymers of glucose. Glucose is the important energy source of the body as the hum,an cells are permeable to the glucose molecule and generates ATP. Carbohydrate acts as an important vital fuel as it contains glucose units.

Thus, the correct answer is option (c).

burning fossil fouls really decrease the carbon in the atmosphere so b