Q. Which of these statements is true regarding food nutrients consumed by humans?

(a)The carbohydrate nutrient, insufficient amounts, serves as the main source of body fuel
(b) Essential amino acids are synthesized in the body to form any substance or materials for the body
(c) the building blocks of lipids are the amino and carboxyl Groups that serves as a storage of energy
(d) dietary fibers are digestible carbohydrates that provide the alternative source of energy