Tyberius Wears a Hat 24 Hours a Day and Becomes

Tyberius wears a hat 24 hours a day and becomes extremely agitated if anyone tries to remove it. He is convinced that small robots made of Lego blocks nibbled his ears off while he was sleeping, and if he removes his hat his brains will leak out through the holes in the sides of his head. Tyberius' delusion is the type of delusion typically seen in

A) catatonic schizophrenia.
B) paranoid schizophrenia.
C) disorganized schizophrenia.
D) undifferentiated schizophrenia.