C) The founding of Wilhelm Wundt's experimental psychology lab in Leipzig, Germany is often considered when philosophy and psychology split.
Explanation:
Psychology became a separate discipline after the first psychology lab was established. Before the establishment of the lab, psychology was had its roots in the discipline of philosophy and physiology. After the creation of the experimental lab in 1879, a distinct path was constructed for the field of psychology. The training was provided to the students so that they can perform extensive research on the field of psychology.
