B) The social gospel movement
The social gospel movement lined up with the Progressive movement that began in the USA in the late 19th century. Progressives sought to implement programs or patterns so that people's lives are improved and society reformed. The social gospel movement emphasized that godly people should be helping their neighbors in this world, not just preparing for a life in heaven after this world. Helping them meant teaching them also to apply biblical principles to their own lives and become thrifty and industrious, rather than engaging in sinful or lazy patterns that hurt their lives.
One could also argue that Andrew Carnegie's "Gospel of Wealth" essay factored into this movement, since Carnegie advocated that those with wealth should use their wealth in ways that would encourage "the slothful, the drunken, the unworthy," as he put it.