Correct option is (b) Gorakhpur railway station, UP
The explanation: • Gorakhpur railway station, Uttar Pradesh, India:1,366.33 m (4,483 ft) (longest in the world).
• Kollam Junction, Kerala, India:1,180.5 m (3,873 ft)
• Kharagpur, West Bengal, India: 1,072.5 m (3,519 ft)
• State Street subway, Chicago, Illinois, US: 1,067 m (3,501 ft) (longest in North America)
• Bilaspur railway station, Chhattisgarh, India: 802 m (2,631 ft).