Answer:
<u>Option-(c): Is the best option to choose from the given five options.</u>
Explanation:
<u>The Concordat of Worms:</u>
It was an agreement between the Henry IV and the pope. It was due to the conflicts between the two, as there was a conflict between them over the Church. As they had tensions over the power of church. And they eventually got to a point where they resolved the whole problem.
As they stipulated that lay rulers could no longer invest prelates with the symbols of their office.
The attacks of the Goths began in 247 A.D. and in 251 A.D. They lured the Roman army under the command of the Emperor Decius into a swampy region and defeated it. ... withdrew Roman troops from Dacia leaving it to the Goths. The Danube once again became the northern frontier of the Roman Empire in eastern Europe.
The answer is c secondary source
I think its A.
Hope it helps!
