Which accurately describes problems caused by poor sanitation in the early 19th century?
O Unsanitary conditions led people to move to cities because they felt cities
were cleaner
O A lack of adequate trash removal systems led to an overpopulation of dogs in
cities.
O Unsanitary conditions led to conflict as cities tried to ship their waste to other
cities.
O A lack of adequate sanitation, such as toilets and sewers, led to the spread of
diseases such as cholera.