How has Seligman’s work in psychology evolved over his career?

A
He began by attempting to alleviate the suffering of mentally ill people, and then shifted to improving the overall happiness of those who didn’t suffer from mental illness.
B
He began by attempting to help all people achieve the same degree of happiness, and then moved to working specifically with people who were not mentally ill.
C
He began by studying mentally ill people and happy people separately, and then began to study them together.
D
He began by working on ways to improve people’s happiness through medical interventions, and then gradually came to reject the role of medications in contributing to happiness.