The correct options are
A Nutrient requirement
B Mode of intake of food
C Utilization of food in the body
Animal nutrition focuses on the dietary needs of animals, primarily those in agriculture and food production, but also in zoos, aquariums. There are seven major classes of nutrients: carbohydrates, fats, fibres, minerals, proteins, vitamins, and water. Animal nutrition includes nutrient requirement, mode of intake of food and its utilization in the body.