They can emphasize a word or phrase or denote a character's thoughts.
Answer:
King Cotton, phrase frequently used by Southern politicians and authors prior to the American Civil War, indicating the economic and political importance of cotton production.
Unhealthy is the correct answer
1825: Turnpikes, canals, and rail lines drastically changed America's landscape, beginning in the 1800s. Following the War of 1812, the American economy was altered from an economy partly dependent on imports from Europe to an empire of internal commerce.