The correct answer is option 2: A-2, B-3, C-1, D-4. Let`s analyze each option to understand why this is the correct answer.

Option 1: A-2, B-1, C-3, D-4

According to this option, NH 5 is matched with the Rajasthan desert, NH 6 is matched with the East coast, NH 15 is matched with Maharashtra and Chhattisgarh, and NH 17 is matched with the West coast. However, this is incorrect. NH 5 does not pass through the Rajasthan desert.

Option 2: A-2, B-3, C-1, D-4 (Correct Answer)

According to this option, NH 5 is correctly matched with the East coast, NH 6 is matched with Maharashtra and Chhattisgarh, NH 15 is matched with the Rajasthan desert, and NH 17 is matched with the West coast. This is the correct answer as it accurately identifies the locations associated with each of the national highways.

Option 3: A-4, B-1, C-3, D-2

According to this option, NH 5 is matched with the West coast, NH 6