Answer:
Maslow's hierarchy of needs
Step-by-step explanation:
Abraham Maslow was a great psychologist who has discovered the theory of the hierarchy of needs which includes five different stages such as, physiological needs, safety needs, love and belonging needs, esteem needs, and self-actualization.
According to Maslow, a person goes through these different stages in his or her life and argued that no one can skip any of the mentioned stage i.e, he or she requires to go through these different stage and once a person fulfilled the lower needs only then he or she can move onto the next or upper stage.
In reference to the question, Jan's eating would be best described by Maslow's hierarchy of needs.