Because they did not have the right equipment
The incorrect answer is B. the cotton gin decreased the need for slave labor in the deep south. In fact, it did quite the opposite, it made slave labor a bigger need, since there was so much buisness.
Overcrowding was most directly contributed to the spread of disease in city tenements in the early 1900.
Back then , the city was shocked by smallpox epidemic. Since smallpox is easily transmitted by contact, overcrowded areas are the perfect breeding spot for smallpox ( they still has not developed small pox vaccine back then)
By the mid 20th century, there were few laws formally on the books that directly discriminated against women. The challenge that women faced was more at a social level. Businesses were not interested in hiring women for career positions. Lower class women worked as maids. Middle-class women worked as teachers or secretaries for a few years after school until they got married, had kids and their husbands managed to got started on their own careers. Then these women stayed home to raise the kids.
