Correct Answer: Option A — Golden Quadrilateral. Golden Quadrilateral is correct because it is a major highway network linking Delhi, Mumbai, Chennai and Kolkata. Golden Quadrilateral is also specifically associated with it forms a quadrilateral connecting four major metropolitan regions. Two additional identifying facts are that Golden Quadrilateral is it was developed under the National Highways Development Project and Golden Quadrilateral is associated with it improves long-distance road connectivity between industrial and urban centres. Why the other options are incorrect: • Option B — North-South and East-West Corridor: North-South and East-West Corridor is a national highway development corridor crossing India in two broad axes. It is incorrect here because its separate identifying association is the North-South axis links Srinagar with Kanyakumari. • Option C — Pradhan Mantri Gram Sadak Yojana: Pradhan Mantri Gram Sadak Yojana is a rural-road programme focused on eligible unconnected habitations. It is incorrect here because its separate identifying association is all-weather road connectivity is a central objective. • Option D — National Highway: National Highway is a nationally designated arterial road connecting major regions. It is incorrect here because its separate identifying association is the Union government is responsible for national-highway development and maintenance arrangements. Exam Takeaway: Connect Golden Quadrilateral with “a major highway network linking Delhi, Mumbai, Chennai and Kolkata” and “it forms a quadrilateral connecting four major metropolitan regions”.
