Final answer:
Karl Marx believed that religion reflects the social stratification of society and maintains inequality, viewing it as an extension of working-class economic suffering.
Step-by-step explanation:
German philosopher, journalist, and revolutionary socialist Karl Marx (1818-1883) also studied the social impact of religion. He believed religion reflects the social stratification of society and that it maintains inequality and perpetuates the status quo. For him, religion was just an extension of working-class (proletariat) economic suffering. He famously argued that religion “is the opium of the people" (1844).