Answer:
Option b. For nearly two hundred years, the Muslim Turks and the European Christians fought in wars called the Crusades.
Step-by-step explanation:
The Crusades were a set of religious wars fought between the Muslims and the Christians in order to secure control of places considered to be sacred and holy by both groups. The eight major Crusades expeditions took place between the years of 1096 and 1201, making the wars to last almost 200 years.