What Was the Primary Motivation for Greek Colonists to Move

What was the primary motivation for Greek colonists to move to the Middle East in the Hellenistic Age?

A) The opportunity to own land in the Middle East. .
B) Their skills were in demand for the economic development of Middle Eastern cities.
C) They were promised an opportunity for self-government.
D) It was a way to avoid lengthy service in the military.
E) It was a way to cultivate their knowledge of other cultures.