A couple brings their 3-year-old daughter to her doctor because she has not behaved normally in the past month. The physician notes that the girl is quiet and less expressive than she was at her well-child visit several months ago. She was previously able to name four colors, but she now stutters and recalls only one. Furthermore, she responds to questions with one- or two-word sentences, which is uncharacteristic of her usually articulate personality. What other symptom might be expected in this patient?
(A) Hand wringing
(B) Hearing loss
© Hyperactivity
(D) Psychosis
(E) Repetitive behaviors
(F) Tics