Scroll below the apple image for the quiz.
The correct answer is C.
To avoid weight gain and driven by extreme anxiety, patients with anorexia eats even less, which further reduces weight and triggers more biological drive to eat and further increases anxiety. Thus, setting off a vicious cycle that is difficult to break.
Psychological and social factors involved in anorexia nervosa include anxious traits and the tendency to worry. Their interaction combined with social pressures and stress in general affect illness behaviors.1 This has made it difficult to tease apart environmental effects from brain biology that poses a vulnerability for developing or maintaining anorexia nervosa.
1. Kaye WH, Wierenga CE, Bailer UF, et al. Nothing tastes as good as skinny feels: the neurobiology of anorexia nervosa. Trends Neurosci. 2013;36:110-120.
For more on this topic, see Dysregulation of Brain Processing in Anorexia Nervosa, on which this quiz is based.