9. Which of the following statements describe an effective security based on time-based model of information security? i. ii. iii. iv. The information security personnel successfully blocked the hacker upon being alerted about the network breach by the intrusion detection system. Defense in depth is the strategy employed to satisfy the objective of time-based model of security. The time an attacker takes to break through the organization's preventive controls should not be greater than the sum of the time required to detect the attack. It is implemented by combining the preventive, detective, and corrective controls. ABCD A. i and ii B. i, ii and iii C. i, ii and iv D. All of the above