Q1. Which one of the following best describes the 'Pituffik Space Base', frequently referenced in the context of United States strategic interests in Greenland?
- A. A United States military installation in Greenland — formerly known as Thule Air Base — used for missile early warning and space surveillance
- B. A joint NATO naval submarine base operated by Denmark and Norway in the GIUK gap
- C. A European Space Agency satellite-tracking station operated under a Denmark–EU agreement
- D. A Danish polar research observatory operated by the Greenland Institute of Natural Resources