Which set does not contain a discrepant element? { self-determination theory, belongingness, esteem} { competence, relatedness, self-determination theory} { maslow, autonomy, competence} { self-actualization, hierarchy of needs, deci and ryan}?

The correct answer is B. Competence, relatedness and self-determination theory.

  All these terms are related and included in the SDT (Self-determination theory), founded by Edward Deci and Richard Ryan. Competence helps us to achieve the mastery of tasks that are important to us. Relatedness : we need each other, so it's important to have a connection with people. Self-determination theory is motivational theory.

c. wright mills's sociological imagination suggest investigating to explain this increase?