Final answer:
The true statement about all perspectives of psychology is that they are based on scientific research and evidence. Psychology encompasses various subfields, all of which aim to understand behavior and mental processes through objective and empirical methods.
Step-by-step explanation:
The statement that is true about all perspectives of psychology is B. They are based on science. Psychology is the scientific study of mind and behavior. It is a diverse field with various subfields such as cognitive psychology, biological psychology, developmental psychology, and clinical psychology, among others. Each perspective focuses on different aspects of human and sometimes animal behavior and mental processes, grounded in scientific research, observation, and evidence.
Cognitive psychology, in particular, is concerned with the study of human thinking and how thoughts relate to behavior. Historically, psychology has roots in both the natural and social sciences, and it has evolved to also include the study of biological processes and the influence of society on behavior. Psychologists employ the scientific method to understand behavior and the mind, distinguishing their work from disciplines like philosophy that rely on more subjective methods.