The group that benefited the most from gaining independence from Mexico are the Tejanos who were the former Americans and has now become the American citizens and had claimed for the American rights and privileges.
Two things that were severely hurting the Soviet economy just prior to its fall were "A. The agricultural and manufacturing sectors were not meeting peoples' needs", since this was a "command economy" in which the government was in control of output.
I think the answer is B. I’m not too sure though.