Answer: I am pretty sure it is "D"
Explanation:
Well first off its not "A" becasue the americans weren't facing a shortage of farmland at all and its not "B" becasue the people that owned the Louisiana territory were europeans (france) so that leaves D and C and i am not sure but I dont think that Louisiana had natural reasources that Jefferson was aware of so "D" would be the answer.
If this doesn't help I'm sorry :)
I hope this helps :)
have a good day