"those who serve": Japanese warriors similar to the knights of medieval
Europe

The answer is Samurai. Either the Landless soldiers  who fought for the daimyo,but had no land. or the Vassals who had land granted by the Daimyo or Shogun.

Explanation:

1. where does the energy of a nuclear power plant come from?

d) political bosses should not hold office

i think the answer is: cuba wanted to be independent from spain, and the u.s. wanted to end spanish rule in the west.

hope i

-lavira : )