Ethnic and cultural divisions between peoples were used by colonial powers to maintain control of their colonies.
-true
-false

This is correct.
This strategy was called "divide and rule" and was used for example in India where the British were strengthening tensions between the Muslims and the Hindus - the result of this is still visible in the conflict between India and Pakistan.

More than 4 million enslaved hunan beings in the south and they touched every aspect of the regions social, political and economic life.