Three of the following are basic ideas of marxism. which is not

Assuming that this is referring to the same list of options that was posted before with this question, the correct response would be that the "market should dominate the economy," since in fact Marx believed that this led to great amounts of social and economic inequality. 

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

manchester's leaders hoped to oppress its working class to benefit factory owners.