Answer:
This is the complete set of options
A. Both were based in Rome.
B. Both declined around the same time.
C. Both had democratic governments.
D. Both acted as a source of division among Europeans.
The answer is A
Roman Empire is referred to as the period/time in Rome government after it became a Republic.
Roman Catholic refers to the church in Rome with lots of members. The leader of the Church is called a Pope and is situated in Rome.
Both subject topics, the Roman Catholic and Roman Empire are based in Rome which validates A.
