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NBB uses the time-based model to evaluate the security level of its Accounting Information System (AIS). The current security System components as following: Preventive control (P) - 12 Seconds Detective control (D) - 5 Seconds Corrective control (C) 8 Seconds NBB management believes that the security level of the AIS is low, and it must be increased, which require to spend $10,000. The improvement of the AIS security has 4 alternatives as following: Alternative I would increase P by 5 Seconds Alternative 2 would decrease by 4 Seconds Alternative 3 would increase P by 3 Seconds and reduce by 4 Seconds. Alternative 4. would increase P by 4 Seconds and reduce D by 2 Seconds. Answer the following questions: 1. Does the AIS of BBK currently secure? And why? 2. Show the Time-based model for Alternative 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? For the toolpress ALT-10 (POR ALTEN FTO MO