Which of the Following Was Part of the Process the Soviet

Which of the following was part of the process the Soviet Union used when they invaded Eastern European nations after World War II?

A) They wrote constitutions and held elections.
B) They formed a number of new political parties that promoted democracy.
C) They forced the monarchies to acknowledge Stalin as head of their governments.
D) They created secret police and took control of the media.
E) They replaced the official Protestant religions with the Roman Catholic Church.