After the 1807 ban on importing enslaved workers, how were slaveholders in the south most likely to gain new workers?

I would suspect they had to hire the poor and pay them to do the work.

pretty sure a is right

the invasive species was introduced due to commercial purpouses, as there was a demand for fur clothes and hence, a business opportunity connected to this product. actually, it was when the nutrias scaped, causing harm to the us ecosystems when they acquired the status of invasive species. in this case they have caused an environmental problem, but it could have affected also economic interests or even human health.