Which one of the following characteristics related to Nordic countries is true ?

The Nordic countries consist of Denmark, Finland, Iceland, Norway, and Sweden [t1][t3]. Geographically, none of these countries are landlocked from all four sides. Denmark, Norway, and Iceland have extensive coastlines along the North Sea, Atlantic, and Arctic Oceans [t1][t3]. Sweden and Finland have significant coastlines along the Baltic Sea and Gulf of Bothnia [t3]. Regarding other options, the Arctic Circle passes through Norway, Sweden, and Finland, but it does not pass through Denmark (excluding Greenland) or the main island of Iceland [t3][t7]. While the region has high-latitude climates, it is not ice-capped throughout the year; lowlands are ice-free for several months, supporting tundra or forest vegetation [c1][t4]. Inland waterways are used for logging in some areas, but they are not the most important means of internal transport compared to modern road and rail networks [c3].

Sources

1. [1] Certificate Physical and Human Geography , GC Leong (Oxford University press 3rd ed.) > Chapter 25: The Arctic or Polar Climate > Distribution > p. 233
2. [2] Physical Geography by PMF IAS, Manjunath Thamminidi, PMF IAS (1st ed.) > Chapter 30: Climatic Regions > Cheap Means Of Transportation > p. 471