I think D, because it talks about prompting more people to migrate.
Answer:
the warm tropical climate is southeast and the great basin is southwest the volcanic islands is the pacific islands then the Midwest is for climate with four distinct seasons
to conduct raids across the border to israel - gradpoint
The Mekong river is one of the primary landforms in the South-east Asian peninsula wherein it stretches 4,200 km from Southern Cambodia to the north of Myanmar. In addition, the river system has been the source of transportation as well as fisheries in settlements surrounding it. The country where the river is not its primary water system would be Vietnam.