The correct answer to this open question is the following.
Unfortunately, you did not attach the map. Without the map, we do no the content. So the map is necessary to answer your question.
However, trying to help you, we can share the following concepts so you can answer because you are the only one who has the map.
Here we are talking about the Diffusion process that allows the transmission of ideas, concepts, and traditions to other groups geographically located in different places.
Contagious Diffusion is the one that historians say spreads like a disease and nothing impedes the transmission to most of the people in other places.
Relocation Diffusion happens when a group of people move to other places and take their customs, culture, and traditions with them.
Stimulus Diffusion is the existence of a trigger or stimulus that generates information that spreads through other regions.
Expansion Diffusion. New information spreads through different locations at the same time.
Hierarchical Diffusion is the spread of information or ideas through a person or institution that has a position of power and the information transcends quickly.
