A multinational company that is appointing a mandatory data protection officer (DPO) must also consult national derogations to evaluate if there are additional cases to be considered in relation to the matter. According to Article 37 (1) of the GDPR, a DPO must be designated by the controller or the processor in any case where: (a) the processing is carried out by a public authority or body, except for courts acting in their judicial capacity; (b) the core activities of the controller or the processor consist of processing operations which, by virtue of their nature, their scope and/or their purposes, require regular and systematic monitoring of data subjects on a large scale; or the core activities of the controller or the processor consist of processing on a large scale of special categories of data or personal data relating to criminal convictions and offences 1. However, Article 37 (4) of the GDPR also allows Member States to provide for additional cases where a DPO must be designated by law 1. Therefore, a multinational company must consult the national laws of the EU jurisdictions in which it operates to ensure that it complies with any additional requirements for appointing a DPO.
The other options are not correct because they are not directly related to the appointment of a DPO. Conducting a Data Protection Privacy Assessment, assessing the number of employees, and revising the data processing activities are all good practices for ensuring compliance with the GDPR, but they are not mandatory actions for designating a DPO. Moreover, the number of employees is not a relevant criterion for appointing a DPO, as the GDPR does not set any threshold based on the size of the organization 2. Reference: 1: Article 37 of the GDPR 2: Guidelines on Data Protection Officers ('DPOs')