Answer:
Probably A.
Explanation:
The Articles did not have separation of powers. It could possibly be B, because the constitution let the federal government tax whereas the the Articles would not also the articles let the states trade internationally, whereas the constitution gave the federal government the control over international trade. But I personally am leaning towards A.
The basic concepts of socialism are as follows; the main idea is that people should live in an egalitarian society where everybody would contribute as much as he can and take as much as he needs, this would give us a society where everybody would be equally well off and nobody would have less. Everything would also be state owned - this has been a solution that happened in the past.
In my opinion, pure socialism cannot succeed but perhaps using some things from it could be very beneficial.