What Is the Thesis of Weber's the Protestant Ethic and the Spirit

What is the thesis of Weber's The Protestant Ethic and the Spirit of Capitalism?

A) Christians are more likely to be skeptical of the benefits of capitalism than are non-Christians.
B) Protestants are slower to adopt capitalism than Catholics.
C) When behaviors that support capitalism are viewed as morally and religiously good, they are more likely to take hold in communities that support those religious and moral views.
D) People with strong religious ties are less likely to embrace capitalism than are people with weaker ties to their religion.