Which of the Following Is Correct

Multiple Choice

Which of the following is correct:

A) Union density is higher in the public sector than the private sector.
B) There are more female union members in the private sector than in the public sector.
C) Union density in the public sector has been declining since 1984.
D) There are more professional employees unionized in the private sector than in the public sector.
E) Union density in the public sector cannot increase in the future.