I believe the best option will be A. because of the geography that would be impacted the most.
Answer:
i think that it is the himalayas in the south and the gobi in the north. If this is not what your asking you can explain more and i will help :)
Explanation:
The United States drop the bomb on Hiroshima on August 6, 1945 when Harry S. Truman was the President
Hope this helps!
I think the Quartermaster Corps