The correct answer is: A. a-3, b-4, c-1, d-2
Nathpa Jhakri Dam is a hydroelectric dam on the Beas River in Himachal Pradesh, India. It is the highest dam in India and the second-highest in Asia. The dam was completed in 2003 and has a power generation capacity of 3,000 MW.
Girinagar Dam is a hydroelectric dam on the Ravi River in Himachal Pradesh, India. It was completed in 1978 and has a power generation capacity of 1,000 MW.
Chamera Dam is a hydroelectric dam on the Sutlej River in Himachal Pradesh, India. It was completed in 1983 and has a power generation capacity of 300 MW.
Pandoh Dam is a hydroelectric dam on the Giri River in Himachal Pradesh, India. It was completed in 1970 and has a power generation capacity of 120 MW.
The following is a brief explanation of each option:
- Option A: This option is correct. Nathpa Jhakri Dam is on the Beas River, Girinagar Dam is on the Ravi River, Chamera Dam is on the Sutlej River, and Pandoh Dam is on the Giri River.
- Option B: This option is incorrect. Girinagar Dam is on the Ravi River, not the Beas River.
- Option C: This option is incorrect. Chamera Dam is on the Sutlej River, not the Beas River.
- Option D: This option is incorrect. Pandoh Dam is on the Giri River, not the Beas River.