Final answer:
Renaldo most likely has bulimia nervosa, characterized by recurrent episodes of binge eating and compensatory behaviors. People with bulimia nervosa may maintain a normal weight but can experience serious health consequences.
Step-by-step explanation:
The eating disorder that Renaldo most likely has is b) Bulimia nervosa. Bulimia nervosa is characterized by recurrent episodes of binge eating, followed by compensatory behaviors such as vomiting, using laxatives, or excessive exercise. People with bulimia nervosa often maintain a normal weight but may experience serious health consequences such as electrolyte imbalances and irregular heartbeat.