What role did Marco Polo serve in the Mongol Empire? Marco Polo ran one of the khanates in the region.
Marco Polo wrote a book about Kublai Khan.
OLO
Marco Polo provided military tactics to Genghis Khan.
d
Marco Polo worked as a court administrator for 17 years.

The last one

Explanation:

Upon reaching China, Marco Polo entered the court of powerful Mongol ruler Kublai Khan, who dispatched him on trips to help administer the realm. Marco Polo remained abroad for 17 years.

happy to help is d

Explanation:

answer; i believe the answer is (mesopotamia); modern day

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.