What are the three major types of economic systems taught in this course?
a. political, controlled and traditional
b. market, political and demographic
c. market, command and traditional
d. religious, political and economic

Read the article titled "trans-saharan migration routes to north africa and the eu: historical roots and current trends." why do tens of thousands of sub-saharan africans try to cross the mediterranean each year? how are these refugees commonly portrayed? (site 1)