Answer:
The good option here is: d.
Explanation:
I guess the answer is that the church leaders began selling them as a way of raising money
For the most of the 20th century Russia was a Communist country with Socilaistic central planned economy and ruled by one party.
<span>1.For the fall of Rome, it was the Huns invading from the east that caused the domino effect, they invaded (pushed into) the Goths, who then invaded (pushed into) the Roman Empire.
2. I'm not so sure</span>
Emergence of Monotheistic religion