How many classes of nutrients supply yourbody with energy

Three classes: Proteins, Carbs and Fats.

Explanation:

Carbohydrates, fats and proteins are macronutrients present in foods to provide calories / energy. Energy is used for the body's vital functions: respiration, circulation, protein synthesis, cell renewal, and physical work.

Carbohydrates are 50-60% components of the diet, carbohydrates provide energy (brain is a totally glucose-dependent organ) and improve muscle recovery after activity. Each 1g provides 4 Kcal to body cells. They are present in breads, vegetables A (leaves) / B (vegetables) and C (potatoes, cassava, yam), cereals, pasta, fruits, legumes.

Fats are components of 20 to 30% of the diet, the largest source of energy for the body. Each 1g provides 9 Kcal. They help in absorbing fat soluble vitamins A, D, E and K. They can be broken down into good fats and bad fats so be careful when consuming them.

Protein makes up 15-20% of the diet. Larger structural components of cells in the human body. Proteins are important for tissue building and maintenance, enzyme formation, hormones, antibodies, and energy supply. Each 1g provides 4 Kcal. They are present in: meat, poultry, fish, eggs, milk, cheese, yogurt, soy, legumes (beans, lentils, peas, chickpeas) and sausages / cold cuts.

answer is b

  a   having low self-esteem

  b   having abusive family members

  c   having poor school attendance

  d   having friends who discuss gang life

living torture and being abused makes one not mind harming other people.

and also not being supported and abusing one turns one into this state.