McClelland Supported Max Weber's Conclusions About the Spirit of Capitalism

McClelland supported Max Weber's conclusions about the spirit of capitalism for the following reason(s) :

A) the Protestant reformation emphasized self-reliance rather than reliance on others in all facets of life.
B) Protestant parents changed child-rearing practices to teach self-reliance and independence.
C) it has been empirically demonstrated by McClelland and his associates that child-rearing practices lead to a higher need for achievement in sons.
D) a higher need for achievement leads to spurts of economic activity such as that which Weber characterized as the spirit of capitalism.
E) all of the above