John Porter's Analysis of the Senior Federal Bureaucracy During the 1950s

John Porter's analysis of the senior federal bureaucracy during the 1950s did not show which of the following?

A) That British, French, and Jewish ethnic groups were significantly represented
B) That women and visible minorities were almost completely absent
C) That individuals of British origin were dominant
D) He showed all of the above.
E) He showed none of the above.