The louisiana purchase most likely contributed to?

Question

A.ending the civil war
B.U.s victory in the AmericAN revolution
c.The development of manifest destiny
D.the onset of industry revolution
PLEASE HELP
this question is from connections academy.

Answer 1

I'll gladly check your answer.

Answer 2

i think that it would be a or b :3

Answer 3

I need to CHECK my work what are quiz answer

Answer 4

what are the anwsers

Answer 5

Is this not A