Which of the Following Contradictions Was Not Resolved During the Working-Class

Which of the following contradictions was not resolved during the working-class movement prior to the 1900s?

A) Socialism sought the abolition of the private employer, while trade unionism sought to bargain with employers for better conditions.
B) Trade unions wished to prepare for revolution, while socialist political parties were more interested in rhetoric and theories.
C) Rural workers were more conservative than urban workers, especially in countries like Italy.
D) Intellectuals favored unionism, while workers favored socialism.