Based on the recent estimates, Bikaner and Jaisalmer are delineated in the Agroclimatic region of Rajasthan:

Correct option is C

The Bikaner district falls under I-C, Hyper Arid and Partial Irrigated Plain Agro-Climatic region. This region includes Jaisalmer and Churu districts also.
· It has a total area of 7.70 million ha.
· Average rainfall here 100-350 mm.
· Soil structure - Desert soils and sand dunes aeolian soil, loamy coarse in texture & calcareous
· The Agriculture Research Station of this region is located at Beechwal, Bikaner.