The correct answer is: C. Baltoro glacier
The Baltoro Glacier is the largest glacier in the Karakoram Range, and the second largest in the world outside of the polar regions. It is divided into three glacier groups: the Godwin-Austen Glacier, the Baltoro Glacier proper, and the Siachen Glacier.
The Godwin-Austen Glacier is the largest of the three groups, and is located in the central part of the Baltoro Glacier. It is about 60 kilometers long, and has a surface area of about 300 square kilometers. The Baltoro Glacier proper is located in the western part of the Baltoro Glacier, and is about 40 kilometers long. It has a surface area of about 200 square kilometers. The Siachen Glacier is located in the eastern part of the Baltoro Glacier, and is about 70 kilometers long. It has a surface area of about 400 square kilometers.
The Baltoro Glacier is a popular destination for mountaineers and hikers. The K2, the world’s second highest mountain, is located at the end of the Baltoro Glacier.