One important result of the Crusades was that a Muslim communities in Europe grew larger.
b the Church began studying Islamic texts.
c there was an increase in trade and cultural exchange between Europe and the Middle East.
d a permanent crusader base was established in the Middle East.

I think its A

Explanation:

While the Crusades ultimately resulted in defeat for Europeans and a Muslim victory, many argue that they successfully extended the reach of Christianity and Western civilization. 

he armenian genocide, also known as the armenian holocaust, was the ottoman government's systematic extermination of 1.5 million armenians, mostly citizens within the ottoman empire.

explanation:

answer; i believe its (cpr);