The author of "Hip-Hop planet" describes the legend of the Great Rock of Toubab Dialaw in order to
A. describe an image of hope that is similar to hip-hop
B. show the lack of education of the people of Toubab Dialaw
C. describe the setting of the Chez Las resturaunt to give it context
D. Represent some non-French history in the story because the residents say they only learn French history