What pamphlet, written by Karl Marx and Friedrich Engels, outlines ideas on communism?

The pamphlet that outlines ideas on communism is "The Communist Manifesto." Written by Karl Marx and Friedrich Engels and published in 1848, this influential document serves as a political and social manifesto advocating for the working class's rights and the idea of a classless society. The key themes of the pamphlet include the critique of capitalism, the historical development of societies through class struggles, and the call to unite the proletariat to overthrow the ruling bourgeoisie.

In contrast, "The Wealth of Nations," authored by Adam Smith, focuses on economic theory and the foundations of free-market capitalism, which diverges significantly from Marxist thought. "The Social Contract," by Jean-Jacques Rousseau, explores the concept of political legitimacy and collective governance, which does not specifically address communist ideology. "Das Kapital," also by Marx, is a foundational theoretical text analyzing capitalism in depth but does not serve as a succinct outline of communist principles like "The Communist Manifesto." Therefore, the correct choice clearly highlights the specific work that articulates the ideas central to communism.