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.
This wave ... As the pogrom spread, units of the SS and Gestapo (Secret State Police), following <span>Heydrich's instructions, arrested up to 30,000 Jewish males, and transferred most of them from local prisons to Dachau.</span>
Answer:
Set Procedures and standards for the military .
Explanation:
rail roads were way to move goods and raw martial on mass. rails roads could move supply faster and over a longer distance than using wagons or boats witch were limited on were they can go. causing an industrial boom.