The correct answer is - Norway and Sweden.
The Scandinavian Peninsula is consisted of only two countries, Norway and Sweden. Very often Finland is mistaken to be part of the Scandinavian Peninsula, but it is actually not. Denmark is actually on the Jutland Peninsula, while Iceland is an island that lies on the border of the Eurasian and North American tectonic plates.
All these countries though, are often referred to as Scandinavian countries, in a regional sense, though it will be more accurate to describe them as Nordic countries to avoid any confusions.
