Which is the best source of historical evidence to learn about how an event unfolded?
 A. 
 a historical novel that takes place during that event
 B. 
 a political map that plots the ongoings of the event by location
 C. 
 a newspaper account written when the event occurred
 D. 
 a research essay that makes an argument about the event
 E. 
 an oral history dictated two decades after the event