This is from " Introduction to World War II" by CommonLit.
PART B: Which section from the text best supports the answer to Part A?

A. “Storm clouds gathered around the world throughout the 1930s. Americans
struggled to make ends meet during the Great Depression. Meanwhile, fascism
swept Italy and Germany.” (Paragraph 1)
B. “Led by President Franklin D. Roosevelt, the United States used its industrial
power to start supporting the Allies — the democratic countries fighting against
the fascist ‘Axis’ countries of Germany, Japan, and Italy.” (Paragraph 4)
C. “Because of the increased employment opportunities, Americans who had been
struggling since the Great Depression finally enjoyed a high standard of living
again.” (Paragraph 6)
D. “In both Europe and Asia, the Axis powers had established a firm foothold prior
to American entry into the conflict. However, slowly but surely, the Allies closed
in on Nazi Germany.” (Paragraph 8)