Read this paragraph from a student research paper, and then answer the question.
most people blasting hip-hop from their car stereos have no idea that the origins of this popular music can be traced to age-old african music and storytelling traditions. in fact, the rhythmic story-telling style of hip-hop closely resembles that of many african griots, or traveling entertainers (eckland 241). "for hundreds of years, griots have traveled from village to village, sharing musical stories and rhythmic songs" (thomas 28).

what subtopic does the evidence in this paragraph support?
a. griots as keepers of the oral tradition in africa
b. the ignorance of most modern music consumers
c. the popularity of hip-hop music in modern culture
d. the influence of african traditions on hip-hop music