Which of the following reforms of Diocletian helped Rome to survive for another 200 years?

He split the Empire into two parts.

Explanation:

Diocletian believed that the Empire grew so fast and it was so big that just one person couldn't control it. So, he split the Empire into two parts: Greek-speaking East (Greece, Anatolia, Syria, and Egypt) and the Latin-speaking West (Italy, Gaul, Britain, and Spain). Afterward, he would split into four parts, once the crisis and conflicts between the rulers obliged him to do so.

i believe the answer is:

-   william jennings bryan is a democrat while mckinley was a republican

at that time, the segment of population that choose for democratic party were the voters with low economic background and vice versa

- william jennings has support of populists and wants to have inflation to farmers while mckinley has support of bankers and businessmen , doesn't want inflation

the fixed value of gold make the large business able to stack up their gold without   being worried that it would devaluated.

- william jennings supported the silver standard while mckinley supported the gold standard

according to jenning, using other metal beside gold could the poor people to have more purchasing power and them advance in the society.