During a routine medical examination of a 15-year-old boy, the attending nurse notices that the ...

During a routine medical examination of a 15-year-old boy, the attending nurse notices that the client is overweight for his age group. On further examination, the client is found to be overweight by more than 40 of his optimum weight.
 
  Which of the following client teachings must the nurse provide when caring for the client and his family members? A) Obesity is often related to an underlying disease.
  B) Calorie intake needs to be reduced by at least 5.
  C) Obesity is often caused by slow thyroid function.
  D) Obesity usually increases the risk of developing lordosis.