b. occupies central and southern Africa is the correct answer.
Hope that helps~
I would say the answer is C. Persons from varied backgrounds working together to try to do a job well.
In the 1960s and 1970s, the U.S. witnessed a rise of public interest groups, due to the progressive spirit of the time where a good number of them established their offices after 1960 and opened their doors after 1970s. The interest groups comprised of: professional associations, public interest groups, business and agricultural groups, labor groups, ideological groups, and public-sector groups. Several factors determined the growth interest groups in the United States. First, The U.S. is heterogeneous in several aspects: its geography, climate, economic potential, culture, ethnicity, and religions. The heterogeneity resulted in political, socio-economic and cultural divisions which led to the evolution of several interest groups, each with unique objectives.
The role of pawnbrokers in the middle ages is : Making loans in exchange for property
So basically if the people in that period need some sort of fund, they can get it with the exchange of their valuable personal property (such as expensive arts, antiques, or gem stones)
hope this helps