The answer is C) The Southern colonies' economy had growing labor demands. Crops like sugar cane, tobacco, and cotton took lots of physical labor to take care of and harvest. Plantations needed workers who they could work all the time and who would be cheap to buy. Hope this helps! Please let me know if I'm wrong. :)
expansion of the Song dynasty into Muslim Central Asia
Explanation:
The Turkic dynasties was a great dynasty that sponsorded various actvities inorder to promote the Muslim religions. This was in form of scholarships for scholars or support for the activities of Muslim traders and sufi missionaries towards their movement to other regions.