Explanation
Encryption of data in a virtual private network (VPN) ensures that transmitted information is not readable, even if intercepted. Firewalls and routers protect access to data resources inside the network and do not protect traffic in the public network. Biometric and two-factor authentication, by themselves, would not prevent a message from being intercepted and read.

Explanation
BIA is an essential component of an organization's business continuity plan; it includes an exploratory component to reveal any vulnerabilities and a planning component to develop strategies for minimizing risk. It is the first crucial step in business continuity planning. Qualitative and quantitative risk analysis will have been completed to define the dangers to individuals, businesses and government agencies posed by potential natural and human-caused adverse events. Assigning value to assets is part of the BIA process. Weighing the cost of implementing the plan vs. financial loss is another part of the BIA.

The greatest benefit of incorporating information security governance into the corporate governance framework is D. Management accountability for information security. This is because management accountability for information security means that the senior management and the board of directors are responsible for defining, overseeing, and supporting the information security strategy, policies, and objectives of the organization, and ensuring that they are aligned with the business goals, stakeholder expectations, and regulatory requirements. Management accountability for information security also means that the senior management and the board of directors are accountable for the performance, value, and effectiveness of the information security program, and for the management and mitigation of the information security risks and incidents. Management accountability for information security can help to foster a culture of security awareness and responsibility, and to enhance the trust and confidence of the customers, partners, and regulators in the organization's information security capabilities.
Management accountability for information security means that the senior management and the board of directors are responsible for defining, overseeing, and supporting the information security strategy, policies, and objectives of the organization, and ensuring that they are aligned with the business goals, stakeholder expectations, and regulatory requirements. (From CISM Manual or related resources) References = CISM Review Manual 15th Edition, Chapter 1, Section 1.2.1, page 181; CISM domain 1:
Information security governance [Updated 2022] | Infosec2; Information Security Governance: Guidance for Boards of Directors and Executive Management, 2nd Edition3

Explanation
Chain of custody forms with points of contact are the best way to enable an organization to maintain legally admissible evidence because they document the sequence of control, transfer, and analysis of the evidence, and every person who handled it, the dates and times, and the purpose for each action1. They also ensure the authenticity and integrity of the evidence, and prevent tampering or loss1. Documented processes around forensic records retention are not sufficient to maintain legally admissible evidence because they do not track or verify the handling of the evidence. Robust legal framework with notes of legal actions are not sufficient to maintain legally admissible evidence because they do not record or validate the preservation of the evidence. Forensic personnel training that includes technical actions are not sufficient to maintain legally admissible evidence because they do not account or certify the custody of the evidence. References: 1
https://www.researchgate.net/publication/326079761_Digital_Chain_of_Custody