Question

According to this source, why did Muslim al-Andalus fall?

Answer 1

It fell because the Umayyads lost their hold on the Arab Empire.
It fell because the divisions within the empire made it vulnerable to attack.
It fell because of the superior military forces of the Christian Crusaders.
It fell because Muslims from the Eastern Khalifate conquered its lands.

Answer 2

oh....

Answer 3

those are just the choices, the answer is one of them, but i don;t know which one.

Answer 4

It fell because the divisions within the empire made it vulnerable to attack.