Udaipur, Rajsamand, Pratapgarh, Bhilwara, Sirohi, Pali, Chittorgarh, Dungarpur, Alwar, Ajmer, Jhunjhunu, and Jaipur (13 districts) are included in which state of Rajasthan?

• A. North-West desert region
• B. Central Aravali mountainous region
• C. eastern plains
• D. Southeastern plateau region