The correct order from narrowest to broadest focus is personality psychology, social psychology, then sociology.
When assessing the narrowest to broadest focus of psychological and sociological perspectives, personality psychology is considered the most specific, as it concentrates on individual behavior and thought patterns. Social psychology broadens the focus slightly by studying how individuals interact with and are influenced by their social environment. Finally, sociology has the broadest focus, examining the structures of societies and how these larger social systems influence individual and group behaviors.
Therefore, the correct answer to the question of which reflects the narrowest to broadest focus is B. personality psychology, social psychology, sociology.