Question

an economic theory that calls for workers to take control of factories is communism socialism capitalism utopianism

Explanation:

Socialism emphasizes workers' control over the means of production like factories. Communism is a more advanced stage where the state withers away. Capitalism is based on private - ownership and profit - seeking. Utopianism is a more general idea of an ideal society not specifically about workers' control of factories.

Answer:

B. socialism