Regarding Autism Spectrum Disorder (ASD)

Multiple Choice

Regarding autism spectrum disorder (ASD) :

A) Females are more likely than males to develop autism spectrum disorder.
B) ASD is the result of parenting styles; biology and genetics do not play a role.
C) There is a worldwide increase in the number of children being diagnosed with autism.
D) So far ASD has only been found in lower-class U.S. populations.