According to the Authors, Kurt Lewin Once Wrote, "There Is

According to the authors, Kurt Lewin once wrote, "There is nothing so practical as a good theory." By that, Lewin was referring to the idea that __________.

A) to solve social problems, psychologists must understand the processes that underlie them
B) basic researchers should not be afraid to conduct applied research aimed at solving social problems
C) applied researchers should have a higher status in the field of social psychology
D) the line between basic and applied research is clearer in social psychology than in other sciences