Which of the following exemplifies a symptom of autism spectrum disorder? a. gemma exhibits deficits in social interaction by not initiating conversations with other children, and she turns her head away when spoken to. b. gemma is quick to anger and is incapable of dealing with a situation in which she is not the center of attention. c. gemma is submissive and physically clings to the people around her. d. gemma is very impulsive—as soon as an idea enters her head she acts upon it.

The correct option is: A. Gemma exhibits deficits in social interaction by not initiating conversations with other children, and she turns her head away when spoken to  

Explanation:

Autism spectrum disorders are the neurodevelopmental disorders and include autism and Asperger syndrome. This disorder is characterized by restricted repetitive pattern of interests, activities and behavior; persistent deficits in social interactions.

Symptoms of this neurodevelopment disorder are generally recognized at the age of one or two. An individual with this disorder experiences difficulty in creating and maintaining relationships and performing daily activities or tasks.

Therefore, option A. exemplifies a symptom of autism spectrum disorder.