National data privacy legislative and regulatory requirements in each relevant jurisdiction are the most important data protection consideration for a global organization that is planning to implement a customer relationship management (CRM) system to be used in offices based in multiple countries, as they would determine the legal obligations and responsibilities of the organization with respect to the collection, use, disclosure and transfer of customer personal data across different jurisdictions. National data privacy legislative and regulatory requirements may vary significantly from country to country, depending on the type or nature of personal data or data processing activities, and may impose different rules and standards for obtaining consent, providing notice, ensuring security, enforcing rights, reporting breaches, appointing representatives or transferring data. The organization would need to comply with the national data privacy legislative and regulatory requirements in each relevant jurisdiction where it operates or where its customers are located, and to implement appropriate measures and safeguards to ensure compliance. The other options are not as important as national data privacy legislative and regulatory requirements in each relevant jurisdiction as data protection considerations for a global organization that is planning to implement a CRM system to be used in offices based in multiple countries. Industry best practice related to information security standards in each relevant jurisdiction may provide some guidance or benchmarks for ensuring security of customer personal data, but they may not reflect the specific context or needs of the organization or the customers, or comply with the legal obligations and responsibilities of the organization. Identity and access management mechanisms to restrict access based on need to know may help to protect customer personal data from unauthorized access, modification or disclosure by internal or external parties, but they may not address other aspects of data protection, such as consent, notice, rights, breaches, representatives or transfers. Encryption algorithms for securing customer personal data at rest and in transit may help to protect customer personal data from unauthorized access, modification or disclosure by internal or external parties, but they may not address other aspects of data protection, such as consent, notice, rights, breaches, representatives or transfers1, p. 63-64 References: 1: CDPSE Review Manual (Digital Version)