I think its the economy.
Please tell me if I'm wrong, and good luck!
B or A would be your answer. (If I am incorrect I am sincerely sorry ;-; but both seem to be in the area of Nationalism)
Answer: Quick Facts
This highly aquatic frog prefers still, shallow waters, like those found at the edges of lakes and ponds or sluggish portions of streams and rivers. The bullfrog's natural range extends from Nova Scotia to central Florida, from the Atlantic coast to Wisconsin, and across the Great Plains to the Rockies.
Explanation: