What causes the autism spectrum disorders?39.Improper family socialization40.A brain dysfunction with abnormalities in brain structure and neurotransmitters41.Damage to the prefrontal cortex of the brain42.Childhood immunizations

A brain dysfunction with abnormalities in brain structure and neurotransmitters.

Explanation:

Autism spectrum disorder is a medical condition associated with the developmental disability. This may cause social, behavioral and communication challenges.

This is associated with the abnormalities in the structure of the brain and affected physiological functions like the activity of neurotransmitters will affect the cognitive and coordination oriented functions of the body resulting in autism.

answer; /// i believe that the correct answer is (

for respect usually. some people might be little awkward if you meet or some would be different. usually   you dont love people when you meet them depends on the type of person.

hope this