(A) Denmark
(B) Germany
(C) Sweden
(D) ** Finland
EXPLANATIONS BELOW
Concept note-1: -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-2: -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-3: -32 A referendum was held on the Aaland Islands on December 31, 1917, and the population voted overwhelmingly for union with Sweden.
Concept note-4: -In 1920, Finland granted wide-reaching cultural and political autonomy to the Åland Islands. The League of Nations considered these measures as satisfying demands to protect the Swedish language and culture there.
Concept note-5: -Åland is situated in an archipelago, called the Åland Islands, at the entrance to the Gulf of Bothnia in the Baltic Sea belonging to Finland.