Although Roman civilization had taken over much and had an impact from the Greeks, this civilization came into being on the course of the previous Etruscan. Etruscan buildings are considered to be only an influence on Rome, not a heritage.
The answer is C.
Christianity begins when the followers of Jesus Christ began to preach and spread his teachings, first in Jerusalem, and immediately then everywhere in the world.
The answer is B.
Roman architecture had a certain influence of Greece, although many architectural works were typical of Roman civilization. Initially, marble, as well as limestones, were used for their temples. Realizing the possibility of concrete in combination with brick, they moved to this material because it was cheaper than stone slabs and blocks, and some demanding structures could have been built in this way.
The answer is D.
