low did Churchill's relationship with President Franklin Roosevelt influence the Allied war effort? A It strengthened the partnership between England and the Soviet Union. B It allowed the United States and England to collaborate effectively on military strategies C It delayed U.S. entry into the war to protect England. D It created tension between the Allies, weakening their response to Germany.

## Step 1<br />The question is asking about the impact of the relationship between Winston Churchill, the Prime Minister of the United Kingdom during World War II, and Franklin D. Roosevelt, the President of the United States during the same period, on the Allied war effort.<br /><br />## Step 2<br />The relationship between Churchill and Roosevelt was marked by mutual respect and understanding, which allowed them to collaborate effectively on military strategies. This collaboration was crucial in the success of the Allied war effort.<br /><br />## Step 3<br />The other options, such as the partnership between England and the Soviet Union, the delay of U.S entry into the war, and the tension between the Allies, are not accurate descriptions of the impact of Churchill and Roosevelt's relationship on the war effort.