Marx Believed All of the Following About Classes and Class

Marx believed all of the following about classes and class struggle EXCEPT

A) a person's class is based on that person's role in the economy.
B) class struggle is between those who own the means of production and those who do not.
C) though people believe a society's dominant ideas may be universally valid, they actually only reflect the ruling class' economic interests.
D) the state acts as an impartial mediator between classes.
E) class struggle will eventually end.