This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Psychiatry
A 60-year-old man whose wife passed away 3 months back now believes his intestines have rotten away and that he is responsible for the death of his wife and should be sent to prison. Likely diagnosis is 
Select and explain. 
A. Delusional disorder, B. Psychotic depression, C. Grief psychosis, D. Schizophrenia
B: Psychotic depression
Answer: B: Psychotic depression 
Explanation: (B) Psychotic depression > DSM-IV-TR Criteria for Major Depressive Episode> "The symptoms are not better accounted for by bereavement, i.e., after the loss of a loved one, the symptoms persist for longer than 2 months or are characterized by marked functional impairment, morbid preoccupation with worthlessness, suicidal ideation, psychotic symptoms, or psychomotor retardation...."> DSM-IV-TR Criteria for Severity/Psychotic/ Remission Specifiers for Current (or Most Recent) Major Depressive Episode> Mood-congruent psychotic features : Delusions or hallucinations whose content is entirely consistent with the typical depressive themes of personal inadequacy, guilt, disease, death, nihilism, or deserved punishment...."