Laura Would Really Like to Have a Second Piece of Chocolate

Multiple Choice

Laura would really like to have a second piece of chocolate cake for dessert.After thinking about it,Laura eats the second piece of cake even though she knows this is what she wants and not what she needs.According to psychologist Sigmund Freud's theory of personality,which level of the personality is in control?

A) libido
B) ego
C) id
D) superego