I think the answer would be A
Good to know. Not sure if this is a question or not.
If you’re referring to the order in which they occurred, it’s 2 then 1 then 3 then 4
(2) devolved advanced architectural techniques
One of the changes that prompted the decline of the Soviet Union was that food shortages were common and were also excesses in military spending. The food scarcity problem has become one of the major economic problems that took place in the Soviet Union wherein the country had to rely much on imports.