When a society invests in education, it improves its standard of living by improving its

basic principle: a pronoun usually refers to something earlier in the text (its antecedent) and must agree in number — singular/plural — with the thing to which it refers. the indefinite pronouns anyone, anybody, everyone, everybody, someone, somebody, no one, and nobody are always singular.

the anwser is c i just took the test

i would say a because the main idea is what the author is the point the author is trying to get across.

the negative way that it shaped life was by having a feudal system where only the nobles and the christian church while it was oppressive to the peasants and specially to women. the positive way that it shape life is by introducing the artisan class when the feudal system fell. it change the attitudes towards religion and it also introduced what was known as knightly chivalry.

-hope this : )