The correct answer is A) providing the dates in which the story takes place.
In "Things Fall Apart," Achebe evokes a particular time and place by providing the dates in which the story takes place.
When the author provides the dates and the places where the story takes place, it can help the reader to evoke the moment of the history, to identify the places better, and to understand the context of the novel in a better way.
Nigerian writer Chinua Achebe wrote "Things Fall Apart" in 1958 to relate stories of Nigerian people in pre-colonial, and what happened there, after the Europeans conquerors arrived in the late 1800s.