Correct Option: D

The Golden Quadrilateral Road Network is a highway network connecting many of the major industrial, agricultural and cultural centres of India. A quadrilateral of sorts is formed by connecting Chennai, Kolkata, Delhi and Mumbai. Ahmedabad, Bengaluru, Bhubaneswar, Jaipur, Kanpur, Pune, Surat, Nellore, Vijayawada and Guntur are also connected by the network.