The correct answer is D.
Ireland and Great Britain are the name of the two islands in the archipelago. There are two countries in the British Isles, but these do not correspond exactly with the physical territories of the two islands. The two countries are:
- Ireland: comprises territories in the island with the name name
- United Kingdom: comprises the whole territory of the Great Britain island (divided in three regions: England, Scotland and Wales) and a region in the North of the other island, denominated the region of Northern Ireland.
