Final answer:
A psychoanalyst would likely suggest that Boris, who chose his college major to prove he is as smart as his chemist father, suffers from an unresolved Oedipus complex.
Step-by-step explanation:
A psychoanalyst would be most likely to suggest that Boris suffers from an unresolved Oedipus complex. Sigmund Freud's theory suggests that during the phallic stage of a child's development, a male child may experience desire for his mother and feel rivalry towards his father. This can lead to a lifelong unconscious drive to prove oneself or to outdo the same-sex parent in some domain, which seems to be reflected in Boris choosing to major in chemistry to show he is as smart as his chemist father. Choosing a major to prove oneself to a parent can be seen as an attempt to resolve such a conflict.