B
You are thinking about what you just learned and are summing it up
Answer:
A.
Explanation:
If you actually read the passage, you could eliminate 3 answers. It isn't logically correct to say Biogeography and Climatology were primarily in only Germany, It being popular also has no effect on the passage or not. And just because it was named after someone doesn't stand logical from a standpoint of the passage so the Only answer would be A.
