Which of the Following Describes a Dual Relationship

Which of the following describes a dual relationship?

A) Any repeated, unwanted behaviorof a sexual nature perpetrated upon one individual by another
B) A sexual relationship between an employee and his or her immediate superior
C) A relationship in which both parties consented but then one party later claims sexual harassment
D) A situation in which a manager convinces his or her employee to engage in a sexual relationship in exchange for incentives
E) A personal, loving, and/or sexual relationship with someone withwhom you share professional responsibilities