Final answer:
The sociological perspective expanded psychology by addressing factors such as gender, ethnicity, and socioeconomic status, providing a more holistic understanding of human behavior within society.
Step-by-step explanation:
From the sociological perspective, psychology was broadened by examining various aspects such as gender, ethnicity, and socioeconomic status. These factors play a significant role in shaping an individual's experiences and interactions within society. Sociologists investigate how these societal elements affect socialization, power dynamics, and cultural practices. By including all of these factors, sociology offers a more comprehensive understanding of the social structures and forces that influence human behavior.
The correct answer to the question is:
d. all of the above.