The correct option is C The Golden Quadrilateral
The Golden Quadrilateral project connects the four major metropolises of Delhi, Chennai, Mumbai, and Kolkata. It also connects the important cities of Jaipur, Gandhinagar, Pune, Bangalore, Vishakhapatnam, Bhubaneshwar, and Kanpur. It was completed on 7 January 2012. This superhighway project significantly reduces the time spent and distance traversed between India's major metropolises. Despite being just 2% of India's road infrastructure, it handles nearly 40% of total national passenger and freight traffic.