Explanation:

- National Highways are crucial road networks that connect different parts of India.

- Option 1: National Highway 27

- Stretches from Porbandar in Gujarat to Silchar in Assam.

- One of the longest east-west corridors in India.

- Option 2: National Highway 53

- Connects Hajira in Gujarat and Paradeep in Odisha.

- Plays a significant role in facilitating transport in central India.

- Option 3: National Highway 44

- Runs from Srinagar in the north to Kanyakumari in the south.

- It is the longest national highway in India.

- Option 4: National Highway 48

- Connects Delhi to Chennai, spanning multiple states.

Your Answer is: Option 3 - National Highway 44

- Correct! It is indeed the longest highway in India.