Two developments of the 1920s are considered underlying causes of the 1930s depression

Although the Stock Market Crash in October of 1929 certainly began the Great Depression, there were many events that led to the gradual decline of the economy. During the prosperous 1920's, bank failures, together with low incomes among farmers and factory workers, helped set the stage for the depression.

answer; i believe that the correct answer is (chronological order);

the governor can not veto a referendum that the voters approve