Please help.. It will really make my day.. I’ll mark brainliest, ty..

Arrange the following events in the order in which they happened by selecting the correct answer from each drop-down.

Event 1
Event 2
Event 3
Event 4

Options :
A. The Europeans attacked the Muslim empire As part of the crusades.

B. Muhammad unified most of the Arabian Peninsula into a single
Islamic state.

C. The Umayyad Army crossed the strait of Gibraltar and conquered Spain.

D. Islamic forces conquered Mesopotamia by defeating the Byzantine people.