Triple

Target entity: Russian Imperial Hydrographic Service
Context triple: [Russian Arctic Ocean Hydrographic Expedition, sponsor, Russian Imperial Hydrographic Service]

• A. Russian Imperial Hydrographic Department chosen
  The Russian Imperial Hydrographic Department was the naval authority of the Russian Empire responsible for maritime charting, lighthouse construction, and other hydrographic services to support safe navigation.
• B. Naval Hydrographic Service
  The Naval Hydrographic Service is the Argentine Navy’s specialized agency responsible for producing nautical charts, conducting hydrographic and oceanographic surveys, and providing maritime navigation information.
• C. Naval Hydrographic Department
  The Naval Hydrographic Department is the Indian Navy’s specialized agency responsible for surveying and charting India’s maritime waters and producing official nautical charts and publications.
• D. Naval Hydrographic Department
  The Naval Hydrographic Department is a specialized unit of the Royal Thai Navy responsible for hydrographic surveying, nautical charting, and related maritime navigation services for Thailand’s waters.
• E. Naval Hydrographic Office
  The Naval Hydrographic Office is a specialized unit responsible for charting, surveying, and providing nautical information to support the maritime operations and navigation safety of the Philippine Navy.
• F. None of above.
• G. Unsure - the case is ambiguous/there is not enough information to decide.