No
many things could change it science , an invasion of another country etc
Answer: C. Muslims
Explanation:
After the death of The Prophet, Muslims spread out of Arabia and began to conquer territory under the his successors. Eventually the Umayyad Caliphate captured a lot of territory in the Middle East from the Byzantine empire which was a Christian empire.
In response, Pope Urban II declared the Crusades in an effort to save the Byzantine Empire against the Muslims and also to retrieve the Holy Land of Israel and Jerusalem from the Muslims.
Whenever we look at a flat surface (a picture, a television screen) and assume we are looking at spaces and objects that have depth, we are accepting a set of visual signals that create an illusion of three dimensional space. 3D cues are so common today that we are almost unaware of them.