Tigris River, Nile River and Indus River.
When Alexander took the throne, he vowed to complete the plans of his father. After three grueling years of warfare, Alexander smashed the Persian armies at the Tigris River and conquered the Persian Empire. While fighting the Persians, Alexander conquered Egypt and founded a city at the mouth of the Nile River (Alexandria). He continued his campaign until he reached India and the Indus River. Where his exhausted troops refused to fight further. And without the support of his army, Alexander had to turn back and begin consolidating his empire.
<em>He ruled an expansive empire.</em>
The European African intellectuals in the 1920s described colonial rule as cruel and robbed the African people from their dignity.
The Colonization process is not much different by slavery. The colony was formed to extract as much resource as possible from the colonized country and the ruler have the right to buy that resource with a low price
B is the best answer to the question