Answer:
Some people believe that the "mudsill theory" helps create a balanced society, while others believe it hurts the economy.
Explanation:
Mudsill theory is the unpopular theory which states that there must be. It continues to be a lower class of people or citizens to serve the upper classes of citizens, thereby making the society run smoothly and efficiently. Such mentality is what led to the American civil war, as it is a pro-slavery theory. It still exists today, and it is what is leading to a subtle form of segregation, racism, sexism, ageism, etc.
Hence, the correct answer to the question is, "Some people believe that the "mudsill theory" helps create a balanced society, while others believe it hurts the economy."