12. Marx s theory that there was a class conflict between the interest of capitalists

The correct answer is B. Socialism

Explanation

Socialism is the name of a social, political, and economic doctrine based on the collective ownership and administration of the means of production to achieve a more equitable distribution of wealth. In this doctrine private property is argued as the distinction of social classes should be eliminated or reduced. Among the most prominent philosophers who contributed to the theoretical construction of socialism are Karl Marx and Friedrich Engels. Therefore, the correct answer is B. Socialism

2 parties makes it easier to vote. balance is achieved multi. interests and opinions are achieved