According to the CRISC Review Manual, centralized log management is the best way to assist in reconstructing the sequence of events following a security incident across multiple IT systems in the organization’s network, because it enables the collection, correlation, analysis, and retention of log data from various sources. Centralized log management can provide a comprehensive and consistent view of the activities and transactions that occurred before, during, and after the incident, and can facilitate the identification of the root cause, impact, and scope of the incident. The other options are not the best ways to assist in reconstructing the sequence of events, because they do not provide the same level of detail and accuracy as centralized log management. Network monitoring infrastructure is a tool that helps to monitor the performance and availability of the network, but it does not capture the log data from the IT systems. Centralized vulnerability management is a process that helps to identify and remediate the vulnerabilities in the IT systems, but it does not record the events and transactions that occurred on the systems. Incident management process is a process that helps to respond to and resolve the incidents, but it does not provide the log data from the IT systems. References = CRISC Review Manual, 7th Edition, Chapter 5, Section 5.3.2, page 263.