IN DESPERATE NEED OF HELP Use the map that shows the spread of Islam under different leaders to answer the following question:

This is a map focusing in on the regions of North Africa, Arabia, and Persia. Different regions are numbered from I to IV. Region I covers the western side of the Arabian Peninsula only. Region II covers region one, plus the entire eastern side of the Arabian Peninsula. Region III covers regions one and two, but also includes the Fertile Crescent and most of Egypt. Region IV covers the first three regions, plus the North African coast to the west of Egypt and most of the Persian empire to the north and east of the Fertile Crescent.
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Which leader likely conquered region I? (4 points)

Ali ibn Abi Talib
Abu Bakr
Muhammad
Süleyman I