That's tough. The term "fat cat" was often used to describe a rich political businessman, so I would go with C, businesses.
While WWI was fought in the trenches and used machine guns and poisonous gas, WWII was fought using modern artillery and machines utilizing more airplanes, ships, tanks, and submarines. Special operations methods were also developed during this war together with atomic missiles and secret communications.
The knights in the feudal era were warriors on horseback who served the king or another feudal lord.
The gentleman was usually a man of noble birth, before he had to be a squire and then was promoted in a ceremony by his superiors
Thus, the knights are part of the group of Vasallos of the feudal era, their main function was to protect the king, the barons and their lands
I hope it help you
One of the major goals shared by both the populists and the progressives was the advancement of economic and social opportunity for the masses, such as the poor.
The first one is the right answer