<prompt> Nihilistic delusions are seen in -a Endogenous depressionb Double depressionc Depression in invoiutional staged Cyclothymiae Dysthymiaababcacdbcd  <response>: Psychotic features delusions, hallucination can occur in endogenous depression not in reactive neurotic depression and occurs later in life involutional depression.Major endogenous depression on top of dysthymia is called double depression Psychotic features may occur. 