Alpine Biome, although found on the five of the seven continents of the world, is not the largest biome in the world. It has only two distinct seasons,not four and is characterized by the presence of coniferous trees (the first indicator that you are about to enter an alpine biome) mosses, and even wild flowers too . It is not just located in mountain regions but it in great and wide mountain ranges of the world. --The answer to this question then is not letter C but letter B.