The changes in china's economy since the 1990s have resulted in a) china's shift to greater market economy reforms. b) china's isolation from the international economy. c) china's increased reliance on their command economy. d) china's economic stagnation and lack of productivity.

hello,

answer: a federal government has final authority on interstate/inter provincial  and international affairs, a confederation is one where the central/national government or authority is governing body what does not have final say over the same matters. hopefully this and i will try again if you don't like this answer : )

best of luck!

b because thats the naswer i got