During a humanitarian trip to an underdeveloped country, a medical student is assessing a 6-year-old ...

During a humanitarian trip to an underdeveloped country, a medical student is assessing a 6-year-old male who has a protuberant abdomen, dry hair, and wrinkled skin.
 
  The child's heart rate is 59 beats/minute, blood pressure 89/50, and temperature 95.2 F (35.1 C). What is the most likely etiology of the child's health problems?
  A)
  A diet lacking in fat-soluble vitamins
  B)
  Fluid and electrolyte imbalances secondary to low -carbohydrate intake
  C)
  A diet that is low or high in carbohydrates but low in fat
  D)
  A diet deficient in both protein and calories