Select all that apply.

what happened at the end of the middle ages?

a. people began to question authority.
b. barbarians attacked the kingdoms.
c. the lower classes rebelled against the upper classes.
d. the feudal system ended.
e. people wanted to explore new lands.

from the conditions of the working class in england by friedrich engels,the main idea is :

its c not d   tell me if that´s correct

adopted the practice of proskynesis, a persian court custom that involved bowing down and kissing the hand of others, depending on their rank.

during the pueblo revolt, father de mora hid most of the gold in the mine and covered the entrance. he tried to take some of the gold with him, but had to leave it behind in order to escape.