That would be B. Buddhism <em>and</em> E. Confucianism
The primary issue that created tension between FDR and southern democrats was that many of FDR's policies were spending tax money on poor black people, which many racist people in the South opposed.
The main way in which it is believed that environmental change contributed to the fall of the Maya Civilization is that there was a sharp drop in the amount of rainfall per year, which led to a decrease in harvests.