Ok... C never happened, and the U.S.S.R. wasn't around between WWI and WWII, so it can't be D...and there was never an election FOR it, therefore it was A, the rise of Nazi Germany which forced the issue....Especially when Hitler practically stabbed Stalin in the back
Wind energy, hydra energy, and solar energy.
John Quincy Adams, hope this helps
The answer is Sparta gained power while Athens declined. The balance in power in Greece was shifted when Athens was absorbed into the Spartan Empire.