Consider the following pairs:Wetland/Lake - Location1.Hokera Wetland - Punjab2.Renuka Wetland - Himachal Pradesh3.Rudrasagar Lake - Tripura4.Sasthamkotta Lake - Tamil NaduHow many pairs given above are correctly matched?

1. A

   Only one pair

   Only one pair. Two locations hold.

2. B

   Only two pairs

   Only two pairs. Renuka (Himachal) and Rudrasagar (Tripura). Hokera is in J&K, not Punjab; Sasthamkotta is in Kerala, not Tamil Nadu.

3. C

   Only three pairs

   Only three pairs. Two of the four states are wrong.

4. D

   All four pairs

   All four. Two mismatches.

Summary. Official key is (b) only two pairs. Renuka Wetland is in Himachal Pradesh; Rudrasagar is in Tripura. Hokera (Hokersar) is in the Kashmir valley, not Punjab. Sasthamkotta is in Kerala, not Tamil Nadu.