It can be inferred from the passage that ....... .

Sigmund Freud divided the structure of human personality into three components: id, ego and
superego. The id is the instinctual part of the personality and contains all the basic drives and
emotions that come from the animal nature in humans. At the other extreme is the superego. It
encompasses cultural values, ideals and rules of conduct acquired from parents. The id is always
in conflict with the superego. An example of how the superego controls the id is when a person
may wish to overeat but does not do so because it is a socially unacceptable thing to do. To
mediate between the id and the superego, people gradually build a third structure called the ego.
The role of the ego is to see that the drives of the id are reasonably fulfilled without disturbing
the superego.