Sociologist: Climate and geology determine where human industry can be
established . Drastic shifts in climate always result in migrations, and migrations
bring about the intermingling of ideas necessary for rapid advances in civilization.

The sociologist’s statements, if true, most strongly support which one of the following?

(A) Climate is the primary cause of migration

(B) All shifts in climate produce a net gain in human progress

(C) A population remains settles only where the climate is fairly stable.

(D) Populations settle in every place where human industry can be established

(E) Every migrations accompanies by rapid advances in civilization