A mental disorder in which a person has exaggerated and unwarranted suspiciousness and perhaps delusions of persecution is called:

A) mania.
B) paranoia.
C) generalized anxiety disorder.
D) egocentrism.

Paranoia is a mental disorder characterized by unfounded beliefs of persecution or harm from others. It involves exaggerated and unwarranted suspiciousness and often includes delusions of persecution. Mania is a mood disorder characterized by excessive happiness, hyperactivity, and energy. Generalized anxiety disorder is a disorder characterized by excessive and prolonged worry about various events or activities. Egocentrism is a psychological term that refers to the inability to differentiate between self and others and to understand that others have different thoughts, feelings, and experiences.