Answer:
Correct answer is by influencing President Truman's decision to drop the atomic bomb on Japan .
Step-by-step explanation:
First option is not correct as United States wanted to prevent Soviet Union from being a factor in the war on Pacific.
Second option is not correct as this strategy was successful.
Third option is correct as president Truman wanted to end the war as fast as possible.
Last option is not correct as stalemate was agreed after Japan was forced to sign it.