A) The Mercator projection is conformal, that is, it preserves the shapes of the continents and is the most suitable for maritime navigation.

B) The Peters projection is equal-area, that is, it preserves the areas of the continents and is the most suitable for representing the world's social and economic realities.

C) The Robinson projection is intermediate, that is, it preserves neither the shapes nor the areas of the continents and is the most suitable for general use.