Please give the correct answer to the following problem.

Which is a true explanation for why Northern states had fewer enslaved workers?

A) All Northerners believed that slavery was wrong
B) Slavery was only legal in Southern states
C) Hiring day workers in Northern factories was generally less expensive than keeping enslaved workers

C) Hiring day workers in Northern factories was generally less expensive than keeping enslaved workers

Please give the correct answer to the following problem.

Why did Northern political parties oppose the spread of slavery?

A) For moral reasons AND to protect the benefits of white workers
B) ONLY to protect the benefits of white workers
C) For moral reasons ONLY

A) For moral reasons AND to protect the benefits of white workers

Please give the correct answer to the following problem.

Prior to the Civil War, slave holding states were the ___ in the nation.

A) Most densely populated
B) Wealthiest
C) Poorest

B) Wealthiest