Please Help will give brainliest what was the main topic of the lincoln douglas debates

A. stopping immigration
B. southern secession
C. The extension of slavery
D. Manifest Destiny

How did the war of 1812 affect public opinion in the united states? a. feelings of nationalism declined because the war destroyed farmlands across the country. b. american pride and confidence surged because the country proved its military ability. c. feelings of nationalism declined as americans realized the importance of trade with britain. d. american military leaders became unpopular for leading the country into a costly war. e. the federalists became popular for supporting peace with britain to keep trade going.

What method did party bosses use to maintain the power of their political machines?

Is this statement true or false? before 1850, workers in american mines, mills, and factories were poorly paid, but their safety on the job was always protected by strict laws.