Final answer:
The theory claiming that individuals with anorexia nervosa have a complete disinterest in food partially captures the complex relationship they have with eating, which is driven by a fear of weight gain and a distorted body image, not disinterest. They typically consume very little food due to this fear and may exercise excessively.
Step-by-step explanation:
Theories surrounding anorexia nervosa claim that victims of this disorder have a complete disinterest in food. This is partially true because individuals with anorexia nervosa generally restrict their food intake significantly due to an obsessive fear of gaining weight and often have a distorted perception of their own body image, seeing themselves as overweight even when they are severely underweight. While they may be obsessed with food and their caloric intake, it is not out of disinterest but rather out of an extreme desire to control it and the effects it has on their body shape and weight.
Anorexia nervosa is an eating disorder characterized by a refusal to maintain a healthy body weight, an intense fear of gaining weight, and a distorted body image. Individuals with anorexia eat very little, may exercise excessively to lose weight, and can suffer from malnutrition, electrolyte imbalances, and severe health issues such as bone loss, heart and kidney failure, and amenorrhea. Cultural factors and potentially genetics can predispose individuals to this disorder, particularly among teenagers and young adults.
Therefore, the correct answer to the student's question is A. 'victims of this disorder have a complete disinterest in food', although it's more accurate to say that their relationship with food is complex and characterized by fear and control rather than disinterest.