In 1998, British Physician Andrew Wakefield and His Colleagues Published

In 1998, British physician Andrew Wakefield and his colleagues published a paper reporting that within 1 month of receiving the measles-mumps-rubella (MMR) vaccine, 12 children began to show signs of autism or other problems. Since that time, 20 epidemiologic studies have ______.

A) corroborated these claims of a vaccine-autism connection
B) found no evidence in support of Wakefield's claims
C) determined that Thimerosal was responsible for autism
D) found only a few cases where vaccination led to autism