Answer:
Option: D) Overcrowding and lack of sanitation created public health problems.
Explanation:
Industrialization changed the life of the people during the beginning of the 1800s. Majority of the rural people moved out of their county side to urban to find a better opportunity and to start a new life. The rural population led to the rise of urbanization in towns and cities. Overcrowding of people lacked sanitation because of their low wages allowing them to stay in unhygienic places.
It is mostly used to favor a political party in elections. In the US, it has been used during our entire history, from the Federalists and Anti-Federalists. Today, both Democrats and Republicans have used it. It has also been used to both increase the political power of minorities but also disenfranchise minorities. There have been several US Supreme Court cases dealing with gerrymandering and has resulted in several states adopting non-partisan redistricting committees.
