What was the long-term impact of the Punic Wars? They allowed Spain and Gaul to gain their independence.
They forced Carthage to become an ally of Rome.
They made Rome the dominant power in the Mediterranean.
They brought lasting peace to the Mediterranean world.

C. They made Rome the dominant power in the Mediterranean.

i don't know why don't you google it?

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.