University of Bahrain uses the time-based model to evaluate the security level of its student Information System (SIS). The out security system components as following: .Preventive control (P)-60 Seconds . Detective control (D)-25 Seconds . Corrective control (C)-40 Seconds University of Bahrain management believes that the security level of the system is low and it must be increased, which require to spend $20,000. The improvement of the security system has 4 alternatives as following: . Altemative 1 would increase P by 25 Seconds. Alternative 2 would decrease C by 20 Seconds. . Alternative 3 would increase P by 15 Seconds and reduce C by 20 Seconds. . Alternative 4, would increase P by 20 Seconds and reduce D by 10 Seconds. Answer the following questions: 1. Does the SIS of University of Bahrain currently secure? And why? 2. Show the Time-based model for Alternative 1 3. Show the Time-based model for Alternative 2 4. Show the Time-based model for Alternative 3 5. Show the Time-based model for Alternative 4 6. Since each alternative has the same cost, which do you think would be the most cost-effective choice? And why? the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac)