The correct answer is (a) Bageshwar District.
Dronagiri Mountains are located in Bageshwar District, Uttarakhand, India. The mountain range is part of the Garhwal Himalayas and is home to several peaks over 6,000 meters (19,700 feet) in elevation, including Dronagiri Peak, the highest peak in the range. The Dronagiri Mountains are a popular destination for trekking and mountaineering.
The other options are incorrect.
(b) Almora District is located in the Kumaon region of Uttarakhand. The district is home to several mountain ranges, including the Kumaon Himalayas, but the Dronagiri Mountains are not located in Almora District.
(c) Champawat District is located in the Kumaon region of Uttarakhand. The district is home to several mountain ranges, including the Kumaon Himalayas, but the Dronagiri Mountains are not located in Champawat District.
(d) Chamoli District is located in the Garhwal region of Uttarakhand. The district is home to several mountain ranges, including the Garhwal Himalayas, but the Dronagiri Mountains are not located in Chamoli District.