I believe it's A.
The Muslims did control Jerusalem for a time, and I believe that they forced the Christians out of it.
Also the Crusaders did sack Constantinople when they were not allowed in by the government there.
I don't know what D is but I'll assume that it is true because I think A is false.
Answer:
B
Explanation:
The warlords gained power after the Han government called upon them to deal with the Yellow Turban rebellion
A. People who worked Land..... blah blah blah, lol