Answer:
I'm pretty sure it's the second option
To surrender during WW2? I assume so (based on the answer choices).
The answer would be the U.S dropped atomic bombs (The fat man and little boy, as they were called) on Hiroshima and Nagasaki. :) Hope I helped.
Because it would count as plagiarism and plagiarism is like a law.
Answer: The answer is "New farming techniques leading to more food."
Explanation: It is the only one that is related to agriculture.