Answer:
b. her id.
Step-by-step explanation:
Sigmund Freud was one of the most influential psychologists of his time. He has given the theory of psycho-sexual development. According to Freud, there are three levels of an individual's mind i.e, id, ego, and superego.
ID: This is the first level of the mind, and is based on the pleasure principle. The id is considered to be the unconscious and impulsive part of an individual's psyche that acknowledges immediately and directly to the basic desires, needs, and urges or an individual.
In this stage, a child needs to get fulfilled his or her desire as soon as he or she wants.