Which geographic factor best explains china's ability to influence the cultural development of japan

There are of course several geographic factors that explain China's ability to influence the cultural development of Japan, but the best option is "location"~ HistoryGuy

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.