Answer:
Correct answer is It enabled the United States to become "the great arsenal for democracy."
Step-by-step explanation:
First option is correct as this was direct result of Roosevelt's administration to help Britain fight Germans during WW2.
Second option is not correct as just a couple of months later they entered the war against Germany.
Third option is not correct as it didn't refer to conflict between Germany and US.
Last option is also not correct as they didn't have any obligation to escort British shipment.