Answer:
D. a perseveration of sameness.
Explanation:
Autism spectrum disorder: The autism spectrum disorder is also denoted with the term ASD and is one of the developmental and neurological disorders. The disorder starts in the early childhood period of an individual's life and lasts throughout life. The ASD hinders an individual's social life, communication skills, and learning abilities.
Perseveration of sameness: A person dealing with ASD desires for loathe change and sameness. With perseveration of sameness, the person with ASD often feels the need to compulsions i.e, repeat things over and over and think about a particular topic again and again.
Sign: The child tends to arrange the toys in a specific manner repeatedly.
In the question above, the given statement is an example of the perseveration of sameness.