Passage: In the following passage, some words have been deleted. Read the passage carefully and select the most appropriate option to fill in each blank. Sigmund Freud (1)_______ therapeutic techniques such as free association and discovered transference, (2)_______ its central role in the analytic process. Freud's redefinition of sexuality to include (3)_______ infantile forms led him to formulate the Oedipus complex as a fundamental concept of psychoanalytical theory. His analysis (4)_______ him with models for the clinical analysis of the mechanisms of repression. (5)_______ this basis, Freud established his theory of the unconscious. Question: Select the most appropriate option to fill in blank number 3.

1. ours
2. it’s
3. its
4. there