Jake is most certainly suffering from narcissistic personality disorder, as he is constantly laughing at his coworkers when they express displeasure about their jobs.
A condition characterized by an exaggerated sense of self-importance. Men are more likely to suffer from narcissistic personality disorder.
The reason is unknown, although a mix of genetic and environmental factors is most likely to blame. Also, in the given case, Jake ignored the request for the assistance.
Therefore, option D is correct.
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