The correct option is A
The kingdom of Ghana emerged from the relatively small agro-pastoral settlements of the fourth century in the region known as Awkar. Between the years 750 to 800 a Mandé language people, known as the Soninké, united under Majan Dyabe Cisse or Dinga Cisse, the first warrior king, dominated Awkar (even today the surname Cisse is prominent in the politics of Mauritania and Mali). The Soninké were then the founders of the empire of Ghana that from the VIII century controlled the trans-Saharan trade. The Ghanas conquered numerous cities and annexed neighboring territories. Its apogee came in the ninth and tenth centuries.
The Oregon trail
Reason: Gold
I think the approach that often used is Constructivism.
Often times, in a specific society , there will be a characteristic of pattern and behaviors that are tolerated and the one that don't.
For example, in Eastern culture, it is not tolerated to call someone that is older solely by name.
I think that the answer is c