Answer:
Autism
Explanation:
Autism or Autism Spectrum Disorder is a  developmental neurological disorder. This is characterized by the challenges of social skills, repetitive behavior and speech, and non-verbal communication.
Autism has sub-types. Most of the sub-types of autism are influenced by environmental and genetic factors. Each of the children has a different level of difficulty. Â
Thus four years Vinicius not approaching in the class when other students ask him to play. These symptoms that Vinicius indicated that he is suffering from Autism disorder.