Which is a true explanation for why Northern states had fewer enslaved workers?(1 point)

Question

Responses

All Northerners believed that slavery was wrong.
All Northerners believed that slavery was wrong.

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

Slavery was only legal in Southern states.

Answer 1

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