According to communists, what is the key to improving human society?

increasing wages

enforcing mandatory charity

eliminating private property

changing the way money works

Among the options given below the answer is option C.

eliminating private property.

Explanation: According to the communist perception the base of the communist society is the common ownership of all assets and access to the all products equally regardless the class.

The key to improve human society is by eliminating the private property.On the communist system government is the owner of all properties and has responsibility to distribute the access the right of the property to the people. Because the communists believe that privatization of the property will lead the society to the imbalance of the property.As a result the difference of rich and poor will be more visible. So human society will not be improved.

So as a main key to improve the human society, the elimination of the private property is certain.

bismarck believed in using force

is the correct answer!