The correct answer would be: The 1939 cash-and-carry amendment to the Neutrality Acts favored Britain over Germany because "Britain had a larger fleet of ships to carry arms than Germany".
With this amendment, lobbied by Roosevelt, the U.S. was allowed to trade arms with belligerent countries in Europe. The only condition was that the recipients provided transport and paid immediately in cash. Great Britain and France had absolute control of the seas, so the amendment put them at a massive advantage over Germany by being able to transport weaponery safely and freely.
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