Answer:
C. the ego
Step-by-step explanation:
Based on Sigmund Frued's psychoanalytic theory of personality which stated that three fundamental structures of human mind determines the individual behavior, these structures includes: the Id, superego and ego.
The Id, which is considered the most basic among all, works unconsciously, and deals solely on basic and immediate wants or urges, such as physical gratification.
The superego on the other hand, deals with morality, in which individual based his behavior on the conscience, or objective morality of his society.
The ego however, tend to balance between the Id and superego, where by, in the process of seeking for physical needs, an individual balances it with morality, such that, one satisfy his or her desire while also not going beyond what is considered right.
Hence, in this case, for Deane to drink wine that night will equate to ID driving her behavior. For her to avoid wine completely due to perceive effect will equate to SUPEREGO driving her behavior. However, since, Deane wants to drink the wine after finishing the research paper, shows, she is be driven by EGO, which balances her urges with her goal, which she considered right thing to do at that moment.
Therefore, the component of Freud's theory of personality that facilitates Deanne's delay of gratification is EGO,