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 neurodevelopmental disorders and include autism and Asperger syndrome. This disorder is characterized by a 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.