In order to pass a law, what must occur in the House of Representatives?
A. The House of Representatives must write the law.
B. The House of Representatives must approve the law.
C. The House of Representatives must veto the law.

Alexander had previously prepared takeover by defeating the Persian army at Issus and captured the Mediterranean eliminating the threat of a Persian naval invasion. As well as keeping Persian land reinforcements from coming from the West, which was key in focusing on other points.