Final answer:
Based on the information provided, we can infer that Dora is bulimic. Therefore, the correct option is d) bulimic.
Step-by-step explanation:
Based on the information provided, we can infer that Dora is bulimic. Bulimia nervosa is an eating disorder characterized by recurrent episodes of binge eating followed by methods to compensate for the excessive food intake, such as vomiting, using laxatives, or excessive exercise. In the scenario, Abby noticed that Dora spends a long time in the bathroom after meals, which suggests that she may be forcing herself to vomit the food she has just eaten. This behavior aligns with the signs and symptoms of bulimia nervosa.