Final answer:
Germany utilizes a dedicated trustee, known as a Datenschutzbeauftragter or Data Protection Officer, to manage customer data in compliance with the data protection laws.
Step-by-step explanation:
The question is asking which country employs a dedicated trustee for customer data management. Among the options provided, Germany is known for its stringent data protection laws and the use of a dedicated trustee, or Datenschutzbeauftragter (Data Protection Officer), who is required for certain companies in order to ensure compliance with the Federal Data Protection Act (BDSG) and the General Data Protection Regulation (GDPR). However, the GDPR is applicable across all EU countries, and many countries have similar requirements for data protection oversight, albeit under different titles or structures.