Which of the following statements are true? (Check all that apply.) A. Most mobile devices do not need to be tracked and monitored as their loss represents minimal exposure. B. All system transactions and activities should be recorded in a log that indicates who accessed what data and when. C. Supervision is especially important in organizations without responsibility reporting or an adequate segregation of duties. D. Accounting systems generally consist of several subsystems, each designed to process a particular type of transaction. E. Customer relationship management (CRM) software includes budgets, schedules, and standard costs; reports comparing actual and planned performance; and procedures for investigating and correcting significant variances. Which of the following are true statements? (Check all that apply.) A. Virtually all calls to fraud hotlines are worthy of investigation. B. Fraudsters follow distinct patterns and leave clues behind that can be discovered by fraud detection software. C. Neural networks and other programs with learning capabilities are still not able to accurately identify fraud. D. Some whistle-blowers have been ostracized, plersecuted, or suffered damage to their careers. E. People witnessing fraudulent behavior are eager and willing to report fraud perpetrators