Correct answer is Seljuks took control of Jerusalem and attacked the Byzantine Empire.
Explanation:
First option is correct as after the battle of Manzikert in 1071 the Seljuks defeated Byzantine army and killed their emperor. Just a couple of years later, they conquered Jerusalem and continued pressing the Empire. That is why the Byzantine Emperor called the Pope and western leaders to help them.
All other options are not correct as they historically never happened, or to be precise they didn't led to First Crusade.
Large areas of Europe were conquered by Muslims. When these areas such as southern Spain were recaptured and placed under Christian rule Muslim customs and architecture remained. Christians were encouraged to go on Crusade to recapture Jerusalem from the Muslims.
A because most people don't understand people that have a accent or that's from different places. So most likely they use them to communicate with their people
