Which of the following best explains the reason for the rise in the standard of living in the United States after World War II? A. the investment in fighting communism worldwide
B. greater productivity at lower costs
C. the creation of Levittown
D. the passage of the Equal Rights Amendment

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during the 20th century, the role of the vice president has evolved into more of an executive branch position. now, the vice president is usually seen as an integral part of a president's administration and presides over the senate only on ceremonial occasions or when a tie-breaking vote may be needed.