Correct Answer: (a) Silchar and Porbander
Solution:The East-West corridor connects Silchar in Assam to Por-bandar in Gujarat and the North-South corridor connects Srinagar to Kanyakumari. These two corridors cross each other at Jhansi. The Golden Quadrilateral connects the four major metropolitan cities of the country, Delhi (North), Kolkata (East), Mumbai (West) and Chennai (South).