(A) ** Sweden and Finland
(B) Sweden and Denmark
(C) Iceland and Sweden
(D) Norway and Denmark
EXPLANATIONS BELOW
Concept note-1: -In the aftermath of the First World War the islands-inhabited by the Swedish-speaking population but belonging to Finland-became an object of a territorial dispute between Finland and Sweden. The residents of the islands claimed their right to self-determination and demanded a reunification with Sweden.
Concept note-2: -One hundred years ago, the Åland Islands were the subject of a dispute between Finland and Sweden. The islands were Swedish until 1809, when, as part of the Grand Duchy of Finland, they became the Russian Empire’s westernmost outpost.
Concept note-3: -The League of Nations granted Finland sovereignty over Åland in 1921. Finland was placed under an obligation to guarantee to the population of the islands their Swedish culture, language, local customs and the system of self-government.
Concept note-4: -The Åland (or Aaland) Islands Question was a dispute about jurisdiction/sovereignty between Finland and Sweden over the islands. It was resolved peacefully by the League of Nations in 1921 ([1921] League of Nations Official Journal 699), before the establishment of the PCIJ.