At noon, Eliza ate the second-to-last piece of chocolate cake. At 3:00 p. m., she ate the last piece of cake, even though she knew that her roommate was counting on having a piece of cake after dinner. Which part of Eliza's personality proposed that she eat the cake

The part of Eliza's personality that proposed that she eat the cake is her id.

Explanation:

The id is a personality component first explained by Sigmund Freud. The three components of personality are id, ego and superego. The id is the part that functions with the purpose of satisfying urges, desires, and needs. According to Freud, a newborn baby has yet to develop ego and superego, meaning it functions only based on the id. The id can be quite demanding, looking for immediate pleasure and gratification. It's interesting to note that the id never really changes throughout our lives. It is unconscious, and it never gets in touch with the external world. In Eliza's case, she chose to obey her id and eat the last piece of cake, even though the other components of her personality would most likely tell her not to. She chose instant gratification over doing what is right.