Respuesta :
Andrew may be suffering from an Autism Spectrum Disorder (ASD), which is manifested in behavior and communication difficulty. The fact that Andrew prefers to sit by himself, away from his peers and their activities show how difficult it is for him to interact with others. His behavior is manifested in repeatitive actions.
Answer: These characteristics fit perfectly into the disease called autism. The repetitive behaviors, the difficulties of engaging in a context, and even having very reduced interests are portrayed in the aforementioned disease.