The correct answer would be, Schizophrenia.
In the context of Personality disorders, It can be inferred that Jack is most likely suffering from Schizophrenia.
Explanation:
Schizophrenia is a disorder in which people cannot interpret the reality normally. Their thoughts, feelings, perceptions, behaviors and emotions are all faulty and abnormal. Schizophrenia can cause delusions, hallucinations and extremely disordered thinking.
There are two types of symptoms of schizophrenia. One is Negative and the other is positive. Positive symptoms may include hallucinations, delusions, and racing thoughts, whereas negative symptoms may include apathy, lack of emotion, poor or nonexistent social functioning, etc.
When Jack felt relieved after getting the news of his son's death, it means his thoughts, feelings, behaviors and emotions are not normal. He is suffering from Schizophrenia, because death of a child is the biggest loss for every parent, and the parent who feels relieved is not mentally stable.
Learn more about Schizophrenia at:
brainly.com/question/6868018
#LearnWithBrainly