Multiple Choice
Which of the following statements is true about autism spectrum disorder (ASD) ?
A) The symptoms of ASD have their onset between ages 6 and 9.
B) The best predictor of the outcome of ASD is a child's IQ and the amount of language development before age 6.
C) The prevalence of ASD appears to vary by socioeconomic status and parental education.
D) The prevalence of ASD has been decreasing in recent years, probably due to increased awareness of the disorder.
Correct Answer:

Verified
Correct Answer:
Verified
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