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D Question 3 1 pts Social mobility is defined as O The ability to change one's position within a socially stratified system O An increase- or upward shift- in social class O A lowering of one's social class O A societal shift that enables a large group of people to move up or down the social class ladder D Question 4 1 pts Who defined power as, "The ability to exercise one's will over others"? O Karl Marx O W.E.B. Du Bois O Max Weber O Emile Durkheim