Which statement gives the best concrete example for the abstract idea mentioned at the beginning of the article that "Parents have a lot to be concerned about today?
es )
A)
Parents put their children in serious danger by not immunizing.
B)
Autism is a complex developmental disease with no known cause or cure.
C)
A growing number of parents are choosing not to vaccinate their children.
D)
Parents must supervise screen time and juggle scheduling many different
activities.