The word "confidential" (para. 6) probably means ______.

A．With a bad reputation they can hardly find another job.
B．They will be hesitated to commit a computer crime again.
C．They may walk away with recommendations he needs and easily find another job.
D．They must leave the country, commit suicide or go to jail.

A．why computer crimes are difficult to detect by companies
B．why computer criminals can often easily escape punishment
C．how computer criminals commit a crime
D．why computer crimes can't be detected