Baisaran valley, Betab valley and Aru valley are located in

Gulmarg
Sonamarg
Pahalgam
Leh

The correct answer is: C. Pahalgam

Baisaran valley, Betab valley and Aru valley are located in Pahalgam, a town in the Indian state of Jammu and Kashmir. It is a popular tourist destination, known for its scenic beauty and its proximity to the Amarnath cave shrine.

The Baisaran valley is a high-altitude meadow located at an altitude of 3,900 meters (12,800 feet). It is known for its lush green meadows and its snow-capped mountains. The Betab valley is a smaller valley located at an altitude of 3,500 meters (11,500 feet). It is known for its beautiful flowers and its waterfalls. The Aru valley is a larger valley located at an altitude of 3,000 meters (9,800 feet). It is known for its apple orchards and its forests.

Pahalgam is a popular destination for trekking, hiking, and camping. It is also a popular destination for bird watching and wildlife photography. The town is well-connected by road to Srinagar, the capital of Jammu and Kashmir.