Which of the Following Is a True Statement Concerning Childhood

Which of the following is a true statement concerning childhood immunizations?

A) The United States is ahead of Denmark, Norway, Great Britain, Canada, and Sweden in immunization rates.
B) Childhood immunization rates in the United States lag behind many other industrialized nations because many U.S. children do not have access to adequate health care.
C) Nearly 100 percent of U.S. children who receive a complete schedule of vaccinations in the first two years continue to receive the immunizations they need until school entry.
D) Disease outbreaks of whooping cough and rubella have not occurred in the United States since the development of vaccines for these diseases.