In what way did the Eastern Roman Empire and the Roman Catholic Church differ?
A)unlike the Eastern Roman Empire, the Roman Catholic Church could not send armies across Europe.
B)unlike the Roman Catholic Church, the eastern Roman Empire was ruled by a pope.
C) unlike the Roman Catholic Church, the Eastern Roman Empire was based in Constantinople.
D) unlike the Eastern Roman Empire, the Roman Catholic Church divided the people of Europe.

Correct answer is C) unlike the Roman Catholic Church, the Eastern Roman Empire was based in Constantinople.

Explanation:

Option A is not correct as Church has done it multiple times. Just take for example the  Crusades.

Option B is not correct as Roman Empire was ruled by the Emperor, not by the Pope.

Option C is correct. Center of the Church was in the city of Rome, while center of Eastern (Byzantine) Empire was in Constantinople.

Option D is not correct as both of them had their influence in Europe. Byzantines had influence in Eastern and Catholic Church in Western Europe.

the answer for 3 is b and the answer for 4 is d