Lionel is 2 years old. Since he was 1.5 years old, he has displayed a consistent inability to respond to his caregivers-he cannot communicate basic needs like sleepiness, hunger, or thirst. He pushes away anybody who attempts to hug him and usually screams if he is touched. He tends to repeatedly hit his head against the wall, because of which he is made to wear a protective helmet. He totally avoids eye contact with anybody, including his mother. Lionel is most likely to be diagnosed with

A. autism spectrum disorder.
B. bipolar disorder.
C. Alzheimer's disease.
D. narcissistic personality disorder.


Answer: A

Psychology

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