The correct answer is (d) West Karbi Anglong.
Uranium deposits have been found in the following districts of Assam:
- West Karbi Anglong
- Nagaon
- Sonitpur
- Tinsukia
- Dibrugarh
- Karimganj
- Cachar
The uranium deposits in West Karbi Anglong are the largest in Assam. The deposits are located in the Lakwa area of the district. The uranium deposits in Nagaon are located in the Lumding area of the district. The uranium deposits in Sonitpur are located in the Biswanath Chariali area of the district. The uranium deposits in Tinsukia are located in the Margherita area of the district. The uranium deposits in Dibrugarh are located in the Naharkatia area of the district. The uranium deposits in Karimganj are located in the Patharkandi area of the district. The uranium deposits in Cachar are located in the Silchar area of the district.
The uranium deposits in Assam are of economic importance. The uranium is used in the production of nuclear power.