Alpine Tundra,as Compared to Arctic Tundra

Alpine tundra,as compared to arctic tundra,

A) is similar in many ways and can occur at lower latitudes due to high elevations.
B) is very dissimilar and is only grouped with arctic tundra because they are both cold.
C) occurs at extremely high latitudes.
D) occurs below the timberline.
E) occurs at low elevations at low latitudes.