Which of the Following Statements Best Defines Industrial and Organizational

Which of the following statements best defines industrial and organizational psychology?

A) It refers to the field of psychology that is concerned with how people become who they are,from conception to death.
B) It refers to the field of psychology that examines attention,consciousness,information processing,and memory.
C) It refers to the field of psychology that focuses on diagnosing and treating people with psychological problems.
D) It is the field of psychology that applies the science of human behavior to work and the workplace.