What was the main reason northern states opposed slavery? Responses A the "Declaration" forbade itthe "Declaration" forbade it B slavery wasn't permitted thereslavery wasn't permitted there C it went against the Constitutionit went against the Constitution D it was an unfair business advantageit was an unfair business advantage

1 answer

The main reason northern states opposed slavery was primarily D) it was an unfair business advantage. Many in the North believed that slavery gave Southern states an economic advantage due to the free labor system, which made it difficult for free labor in the North to compete. While options A, B, and C may reflect some sentiments or legal perspectives, the economic implications were a significant driving force behind the opposition to slavery in the Northern states.