The correct option is D Continental Glacier
Continental glacier is a type of glacier. When a glacier erodes the steep walls of a mountain, it may form a bowl-shaped depression known as a cirque. When two cirques are formed in a mountain, and the walls of the depression are joined together back to back, it forms sharp and narrow ridges known as aretes. Valleys are formed by tributaries of the glacier hanging over the main glacial valley are known as hanging valleys.