The one that is most likely study written records would be : C. Historians
The history of mankind started the moment we developed writing technique. With writing, we could get more accurate interpretation about what's been happening in the past
hope this helps
Geography affects culture in a way the way of life and survival of the people depends on the geography like the people in the Sahara who lived the way the desert dictates and the people in the Eskimos who lived the way the coldness and winter dictates them how and the way of life should they follow. Traditions and beliefs also depends on the geography they lived.
