Correct option is C
The correct answer is (c) Chamoli.
Chamoli is the largest district in Uttarakhand by area, covering approximately 8,030 square kilometers.
It is renowned for its natural beauty and is home to the famous Badrinath Temple, a significant pilgrimage site in India.
Additional Information:
Dehradun: Covers an area of about 3,088 square kilometers and serves as the capital city of Uttarakhand.
Udham Singh Nagar: Spans approximately 2,908 square kilometers and is known for its agricultural productivity.
Haridwar: Encompasses around 2,360 square kilometers and is one of the seven holiest places in Hinduism.