What important detail about Krebs’s sisters and mother is revealed?

Both of his sisters and his mother are very naive. His sisters and his mother have never left town. His sisters and his mother are very fond of him.

we need to see the paragraphs in order to answer this.

well, number 1, the 1920s was not economically prosperous until the start of the lend-lease act, which employed large amounts of people in producing equipment for the allies.

b. world war ii is your answer, because wwi had already ended at 1918, and the cold war was after 1945.

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