Why would a system be structured to isolate different classes of information from one another...

A system that is structured to isolate different classes of information from one another and segregate them by user jurisdiction can help the organization to vary its system policies to comply with conflicting national laws. Different classes of information may have different levels of sensitivity, confidentiality, or classification, and may require different security measures and controls to protect them. Different user jurisdictions may have different legal or regulatory requirements, standards, or expectations for the information, and may impose different obligations or restrictions on the organization. By isolating and segregating the information by class and jurisdiction, the organization can tailor its system policies to meet the specific needs and demands of each class and jurisdiction, and avoid any conflicts or violations of the national laws. The other options are not the reasons why a system would be structured to isolate different classes of information from one another and segregate them by user jurisdiction, as they either do not relate to the system structure, do not involve different classes or jurisdictions, or do not address the national laws. References: CISSP - Certified Information Systems Security Professional, Domain 1. Security and Risk Management, 1.6 Understand legal and regulatory issues that pertain to information security in a global context, 1.6.1 Understand and adhere to laws, regulations, and compliance requirements, 1.6.1.2 Data sovereignty; CISSP Exam Outline, Domain 1. Security and Risk Management, 1.6 Understand legal and regulatory issues that pertain to information security in a global context, 1.6.1 Understand and adhere to laws, regulations, and compliance requirements, 1.6.1.2 Data sovereignty