Answer:
A. He gained their loyalty by honoring their gods.
Step-by-step explanation:
I am pretty sure this is right, because Alexander and his army of Greeks were regarded as liberators and the Oracle of Amun at Siwa Oasis pronounced him the new ‘master of the universe’ and a descendent of the Egyptian god Amun. Alexander respected Egyptian culture and religion, but he installed a Greek government to control his administration of Egypt.