Considering the etiology of eating disorders, the most significant contributing factor is: ) ...

) Medical
  b) Social
  c) Psychological
  d) Biological

Natalie Sundheimer presents with the following medical symptoms; dry, yellowish skin
  and lanugo (baby fine downy hair on her trunk, face and extremities). In addition, her
  teeth appear moth eaten and she wears a heavy sweater despite the fact that it is a hot
  summer day. She is excessively fearful of being fat and weighs less that 80 percent of her
  normal body weight. These features most often accompany the following diagnosis:

a) Bulimia nervosa
  b) Binge eating disorder (BED)
  c) Other specified feeding or eating disorder
  d) Anorexia nervosa

a) Depression
  b) Cluster C personality disorders
  c) Specific phobias
  d) Chromosomal abnormalities