Autism is a disability that results from a disorder in the central nervous system. It has been speculated that the increasing number of cases of autism in recent years is due to the increase in the number of vaccinations given to young children. What might be another possible explanation for this phenomenon?

AThe increase in autism is due to an increase in television viewing.

BThere are now better diagnostic tests available for autism, which causes more cases to be identified.

CThe increase in autism is due to the decline of public education.

DThe increase in immunizations is the only possible cause for autism