Greg is attending a lecture on the principles of management at the local community hall. In the middle of the session, he begins to feel very hungry and wants to leave. However, he realizes that leaving would disrupt the class and perhaps insult the speaker. He decides to wait until the lecture is over and then get a snack. According to Freudian psychoanalytic theory on the human mind, Greg's mind has a highly developed ________.

Id: The id is the most "basic" structure and refers to our instincts, it's unconscious and it acts on the here and now. It is what makes us follow our desires the moment we feel we want them.
Super-ego: The super-ego refers to our "conscious". It is the part of the mind that tells us what is right and what's wrong based on social norms and values. Sometimes we would postpone things we want (or not do them at all) because the super-ego feels like it's inadequate to do them.
The ego: Is the mediator between the previous two structures. This is the conscious part of the mind that decides when to satisfy the id and when to satisfy the super-ego.

In the example, Greg is feeling very hungry but he realizes that leaving would disrupt the class and perhaps insult the speaker so he decides to wait. Greg is acting based on the social norms he has learned (it is rude to leave in the middle of a lecture). Thus, he would be acting according to his super-ego.

Therefore, Greg's mind has a highly developed super-ego