[单项选择]Which of the following can be inferred concerning Freud's psychological views
A. (A) Freud tended to be critical of all psychologists who did not support his view of the libido as the sexual drive of fulfillment.
B. (B) Freud tended to ascribe little importance to the hypothetical elan vital, even questioning its existence.
C. (C) Freud tended to restrict the notion of the libido to matters of human sexuality, ignoring its broader role as a life drive.
D. (D) Freud tended to view the libido as a mechanism of the conscious, but not of the collective or personal unconscious.
E. (E) Freud failed to acknowledge the role of the conflicting desires of the individual in shaping the human libido.