Final answer:
The correct answer is d. Embassy Medical Services.
Step-by-step explanation:
The correct answer is d. Embassy Medical Services. When a patient is stationed overseas for a certain period of time, their medical records would typically be stored and maintained by the Embassy Medical Services. These services are provided by the government through embassies and consulates to ensure the healthcare needs of individuals stationed abroad are met. This allows for continuity of care and access to necessary medical information during their time overseas.