The early roots of psychology are firmly planted in physiology and ______.

Correct answer: Philosophy. Psychology grew out of philosophy (questions about mind and knowledge) and physiology (the study of the body and senses).

• Anatomy: Anatomy studies body structure and was not the other main root.
• Logic: Logic is a branch of philosophy and not the other main root.
• None of these: “None of these” is incorrect because philosophy is correct.