The central section of the SindhSāgar Doāb is indeed located in the Thal Desert, making option (B) the correct answer. The SindhSāgar Doāb is a region in Punjab, Pakistan, situated between the Indus and Jhelum rivers. The Thal Desert is a large, arid region within this doāb, characterized by sand dunes and sparse vegetation. In contrast, the Thar Desert (A) is primarily located in India and Pakistan, but further east, not central to the SindhSāgar Doāb. Cholistan Desert (C) is also in Punjab, Pakistan, but southeast of the Thal. Katpana Desert (D) is a high-altitude cold desert in Gilgit-Baltistan, completely different geographically.
Thal, central section of the Sindh Sāgar Doāb (tract), Punjab province, Pakistan, lying between the Indus and the Jhelum and Chenāb rivers. Formerly desert, it is now irrigated by canals from the Jinnah Barrage (Kālābāgh Barrage) on the Indus