I think it would be A and C. Hope this helps
Answer:
Beginning in around 1800 BC, a group of nomadic peoples known as the Aryans suddenly and swiftly overwhelmed and conquered the Indus River Valley Civilization, probably entering through the Khyber Pass.
Explanation:
The First Crusade which was in 1096, was the only successful Crusade.
I believe it would be answer C
