The correct answer is C. 6100 m.
The Greater Himalayas zone of Jammu and Kashmir is the highest mountain range in the world, with an average height of 6100 m. The range is located in the northern part of the state, and it includes the Karakoram Range, the Zanskar Range, and the Pir Panjal Range. The Greater Himalayas are a popular destination for mountaineering and trekking.
Option A is incorrect because the average height of the Greater Himalayas zone of Jammu and Kashmir is 6100 m, not 5000 m.
Option B is incorrect because the average height of the Greater Himalayas zone of Jammu and Kashmir is 6100 m, not 4500 m.
Option D is incorrect because the average height of the Greater Himalayas zone of Jammu and Kashmir is 6100 m, not 7500 m.