The correct answer is option 2, which states that pairs 2 and 3 are correctly matched.

Let`s dissect each option to better understand why this is the correct answer:

Option 1 states that only pair 1 is correctly matched. However, this is incorrect as Bandavgarh National Park is actually located in central India, not western India. Therefore, option 1 is not the correct answer.

Option 2 states that pairs 2 and 3 are correctly matched. Upon further examination, we find that Bandipur National Park is indeed located in southern India, making pair 2 correct. Additionally, Manas National Park is located in the north-eastern part of India, further confirming that pair 3 is also correct. Therefore, option 2 is the correct answer.

Option 3 states that both pair 1 and pair 3 are correctly matched. As discussed earlier, pair 1 is actually incorrect since Bandavgarh National Park is not located in western India. Thus, option 3 is not the correct answer.

Option 4 claims that all three pairs are correctly matched. However, since pair 1 is incorrect, option 4 is also not the correct answer.

In summary, option 2 is the correct answer since it correctly states