Anita puts forward the idea that under capitalism, working people and their bosses will struggle against each other. From this struggle, a new kind of society will emerge. Her thoughts most closely mirror those of which theorist?

Karl Marx

Explanation:

Karl Marx laid out many of the concepts that are central in the ideologies of socialism and communism (he did not "invent" these ideologies though).

Marx believed that history was the history of class struggle, and that under capitalism, this struggle pinned the capitalists against the working class.

The capitalists owned the capital: factories, farms, workshops, etc, and the working class did not own anyting except for their labor force. The working class was paid a salary only high enough for their survival, but the surplus value they produced was accumulated by the capitalist.

Marx believed that because the working class was the majority, it would eventually revolt against the capitalist class, take power, and inaugurate a new type of society.