Why did Americans ration during World War II? A. to minimize hunger pangs in the home front
B. to practice frugality and mental toughness
C. to undermine the agricultural industry
D. to conserve raw materials for the fight abroad

Consider the following invention from the american industrial era. cotton gin – a machine that removed seeds from short-staple cotton which option explains how this invention contributed to the role of the united states as an emerging world power? a. it was in high demand abroad, as many european nations had begun farming cotton. b. it led to the decline of slavery in the south, which enhanced america’s international reputation. c. it freed up many slaves to become factory workers in northern cities, which improved the economy. d. it increased production efficiency of a us cash crop that was in high demand in other nations.