Answer:
Carl Jung.
Step-by-step explanation:
There are some character types that appear frequently, despite the fact that the cultures Penelope studies have had little to no contact with each other. The work which Penelope would likely cite to explain this observation is Carl Jung's concept of archetypes. According to Jung, these archetypes are the common content of the collective unconscious. They appear differently in myths, dreams, art, and stories. These characters appear in literature and can be traced back to myths such as the hero.