Correct Answer: (a) Western
Solution:Western region of the Uttar Pradesh has developed most from the industrial point of view. The western region is more urbanized than the rest of the State and has more industrial workers per thousand in registered factories, against rest of the State. Western UP, particularly areas like Gautam Buddha Nagar (Noida), Ghaziabad, and Meerut, are close to Delhi, benefiting from its industrial and commercial activity. The region has seen significant development in terms of roads, expressways, and logistics, facilitating industrial growth. The fertile plains in Western UP are conducive to agriculture, providing a foundation for related industries. Invest UP and other state-level initiatives have further encouraged industrial development in the area.