The levels of need awareness in order from first to last are:
A. conscious. self-conscious. and unconscious.
B. conscious. preconscious,. and subconscious.
C. conscious. unconscious. and subconscious.
D. conscious. preconscious. and unconscious.
E. conscious. preconscious. and self-conscious.
Answer: D. conscious, preconscious, and unconscious.