The correct answer is 1
Wundt was, first of all, a philosopher who formulated a system of philosophy, a theory of knowledge, an ethics and a metaphysics. Without an adequate understanding of his philosophical writings, problems relating to the interpretation of his psychology cannot be satisfactorily resolved.
Wundt listed three tasks for his life, the creation of:
(a) experimental psychology;
(b) scientific metaphysics; and
(c) social psychology.