Atlantic coast, gulf coast, American west, and St. Lawrence river.
C. Archaeology is your answer
Answer: Thomas Jefferson is the answer, i just did it:))
Explanation:
Hm, this is not an easy question.
Generally the best way to prevent a nuclear disaster is not to have any weapons, so A would be a good option. But in the modern world, complete destruction of all weapons is not feasible, and people believe that since US and Russia limited their number of weapons, this is no longer such a big concern (option D, which is I think the best. Personally, however I faviour A as a solution to the problem of nuclear weapons).
I believe it's A: capitalizing on the harsh post-war conditions in their countries.