Only a minority of americans agreed with marx’s notion that in a class-free society there would be
a. no proletariat.
b. no socialism
c no war.
d. no industry.

C no war.

Explanation:

According to Marx's class theory, there is an inevitable struggle between the capitalist and proletariat because of different economic interests. Capitalist wants to maximize their profit while labor want to maximize their wages and this lead to the formation of two conflicting classes. Only a proletarian revolution can make a class-free society where resources would be controlled by society and this theory is called Socialism. This would end the causes of many social problems including war.

d.he wanted to send diplomats to communist countries.