Which of the following best explains how the historical context of the United States in the early 1940s affected Churchill's rhetoric in his 1940 speech?

A. American desire to intervene in European affairs led Churchill to
emphasize the importance of American armies.

B. American isolationist sentiment led Churchill to emphasize that he
foresaw no need for American troops to join the fight.

C. The loss of the American boats in the Pacific led Churchill to
emphasize the need for a significant production of ships.

D. The early successes of appeasement led Churchill to emphasize
how unnecessary American troops were to the war effort.