Wilhelm Wundt founded the school of psychology called:

a. functionalism.

b. psychoanalysis.

c. behaviorism.

d. structuralism.

The correct solution to this problem is provided by option D: structuralism.

To elaborate, structuralism is considered by many academics in psychology as the very first psychological school of thought (SoT). This particular SoT tried to understand the structure of the human mind using introspection and laboratory observation. It is associated with the first psychological laboratory in Leipzig.