William James published his Principles of Psychology in

Solution(By Examveda Team)

William James published his influential book, "Principles of Psychology," in 1890. This book is considered a landmark in the field of psychology and is one of the most significant contributions to the discipline.

In "Principles of Psychology," James explored various topics, including perception, memory, consciousness, and the self. He presented a holistic perspective on psychology, emphasizing the importance of studying individual experience and the practical implications of psychological principles.

James's work had a profound impact on the development of psychology, particularly in the United States, and his ideas continue to be influential today. By emphasizing the study of individual experience and practical applications of psychology, James contributed to the growth and expansion of the field.

Therefore, the correct answer is option B. 1890, as that is the year when William James published his influential book, "Principles of Psychology."