​Ebbinghaus and König Argued That Psychology and Physiology ____

​Ebbinghaus and König argued that psychology and physiology ____.

A) ​must be separated if the new science was to flourish
B) are inseparable halves of a new great double science
C) ​must each address classic problems from philosophy
D) must remain parallel and together but not intersect while studying the mind-body problem
E) must unite to remove introspection and replace it with experimentation in the new science