Which of the following is a subtype of Delusional Disorder?

Erotomanic is indeed a recognized subtype of Delusional Disorder, characterized by the belief that another person, often of higher social status, is in love with the individual. This fixed false belief may lead to behaviors such as trying to contact the person believed to have romantic feelings, or even stalking.

Delusional Disorder itself is classified into various subtypes based on the predominant theme of the delusions, which include persecutory, grandiose, jealous, and, importantly, erotomanic.

The erotomanic subtype highlights a specific theme of delusional belief centered around love and affection, distinguishing it from other conditions. This subtype often manifests in interpersonal contexts, affecting social dynamics and the individual’s perception of reality significantly.

Other options do not fit within the classification of Delusional Disorder's subtypes. For instance, postpartum is related to mood disorders in the context of childbirth, dissociative refers to a different group of disorders that involve disconnection from reality, and antisocial pertains to personality disorders characterized by a disregard for rules and the rights of others. Each of these categories has its own diagnostic criteria and does not classify under Delusional Disorder.