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.

marginal cost is a microeconomic measure that us to evaluate the extent to which the level of production of a good is sustainable in accounting, that is, to how many quantities the company plans to profit from the production of the good.

the concept of marginal cost is simple, it means the cost of producing one more item. for example, in the case of pies, the marginal cost is the cost of producing one more pie than those that have already been produced.

it is important to understand that productive activity influences marginal cost. the marginal cost of some goods can be very high, while others may be insignificant. for example, the marginal cost of producing an extra plane is very high. already the marginal cost of a water company to provide 1l more water is derisory.

in the case of pies, the cost involves the inputs, the labor and the fixed cost, which involves the fixed space of the bakery. the level of production initially has the marginal cost decreasing because there is space and manpower available. however, to produce more you have to hire more workers and buy more inputs. if physical space is limited, workers will conflict with places, inputs and their productivity will decrease, meaning there is an optimum point of production for each level of space and manpower. from this point on, the productivity of the workers will be getting smaller because of lack of space, so that the marginal cost of producing one more pie will be increasing. so, although you have not posted the chart, but if you have the answer, you can see that my explanation goes according to the marginal cost curve that will increase from the 4th pie, answer (c).