Some of the Important and Long-Standing Institutions of the American

Some of the important and long-standing institutions of the American healthcare system, that are not likely to disappear in the near future as a result of reforms, include all of the following except

A) private employer-based health insurance.
B) FSA contributions.
C) insurance plans with a long history (e.g. Blue Cross and Blue Shield) .
D) nonprofit hospitals.
E) Medicare.