<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A 10-year-old boy is brought to the physician by his parents because they are concerned about his strange behavior. The boy was born at 39 weeks gestation via spontaneous vaginal delivery. He is up to date on all vaccines and is meeting all developmental milestones. The parents state that he has always been a solitary child without many friends, but that recently, he has been having behavioral problems that seem to be unprovoked and are occurring more frequently. The child will throw a tantrum for no reason and does not respond to punishment or reward. He also has a strange obsession with collecting rocks that he finds on his way to and from school, so much so that his room is filled with rocks. His teachers say he daydreams a lot and is very good at art, being able to recreate his favorite cartoon characters in great detail. On assessment, the patient does not make eye contact with the physician but talks incessantly about his rock collection. The childs grammar and vocabulary seem normal, but his speech is slightly labored. Which of the following is the most likely diagnosis?? A: Autism spectrum disorder, level 1, B: Autism spectrum disorder, level 3, C: Tourettes syndrome, D: Obsessive compulsive disorder, E: Picks disease,  <response>: This appears to be a question asking about diagnosing a behavioral or developmental disorder in a child based on described symptoms. The key symptoms given in the stem are: solitary behavior without many friends, recent unprovoked tantrums not responsive to discipline, obsession with collecting rocks, tendency to daydream, good art skills copying cartoons, lack of eye contact, talking excessively about rock collection, normal grammarvocabulary but labored speech. This fits most closely with a diagnosis of autism spectrum disorder, likely a milder presentation based on relatively normal development and language skills level 1. The rock collecting and cartoon drawing fit with restrictedrepetitive behaviors and interests. The other choices do not fit as well - Tourettes involves motor and vocal tics, OCD involves repetitive behaviors driven by obsessionscompulsions, Picks disease is a neurodegenerative disorder.A: Autism spectrum disorder, level 1 