[单选题]

It can be inferred from the passage that by the end of World War Ⅱ , most Americans ______.
A． were very rich
B． lived in poverty
C． did not own automobiles
D． had own automobiles

It can be inferred from the passage that by the end of World War Ⅱ , most Americans ______.A． were very richB． lived in povertyC． did not own automobilesD． had own automobiles