<prompt> Folie-a-deux means -Delusion of persecutionSharing of delusionDelusion of doubleNone  <response>: Ans. is b i.e., Sharing of delusionInduced delusional disordero It is also known as shared psychotic disorder or symbiotic psychosis.o It is characterized by sharing of delusions between two person Folie a deux or rarely between more individuals Folie a troisy Folie a quatre, Folie a famille.o There is a dominant active person who induces delusions into the other passive receptor or dependent person Dependent person accepts the delusion of dominant person.o On separation of two, dependent person may give up his delusions, however the active dominant person often requires treatment. 