Which of the Following Is True of Primary Care in the United

Which of the following is true of primary care in the United States?

A) It is delivered almost entirely by physicians.
B) Physicians who deliver primary care must have an MD degree.
C) Physicians who deliver primary care in the United States must have graduated from an accredited medical school in the United States.
D) There are approximately two specialty physicians for every primary care physician in the United States.
E) None of these is correct.