Explanation
- A
3 2 4 1
Dudhsagar 3. Himachal Pradesh. This option pairs Dudhsagar with Himachal Pradesh, but Dudhsagar waterfall is located in Goa on the Mandovi river.
- B
4 3 2 1
Barkana 1. Karnataka. This option pairs Barkana with Karnataka, which is correct as the Barkana Falls are situated in the Shimoga district of Karnataka.
- C
1 2 3 4
Khandadhar 2. Odisha. This option pairs Khandadhar with Odisha, which is correct since Khandadhar Falls is located in the Kendujhar district of Odisha.
- D
4 1 2 3
Palani 4. Goa. This option pairs Palani with Goa, whereas Palani Falls is located in Himachal Pradesh. However, looking at the full matching code provided in option (d) as 4, 1, 2, 3, it correctly maps Dudhsagar to Goa (4), Barkana to Karnataka (1), Khandadhar to Odisha (2), and Palani to Himachal Pradesh (3). Thus, option (d) successfully aligns all the waterfalls with their respective correct states through the designated sequence.
Summary. Official key is (d) 4 1 2 3. This question requires matching Indian waterfalls in List-I with their respective states in List-II. Dudhsagar is located in Goa, Barkana in Karnataka, Khandadhar in Odisha, and Palani in Himachal Pradesh. Matching these correctly gives A-4, B-1, C-2, and D-3. Therefore, option (d) is the correct code.