दाट अथवा केंद्रित वसाहतीची खालीलप्रमाणे वैशिष्ट्ये आहेत.
अ. मैदानी भागात तसेच सुपीक मृदेच्या भागात भारतात दाट वसाहती आढळतात.
ब. वसाहती दाट असल्यामुळे अस्वच्छता, सामाजिक तंटे, आरोग्याचे प्रश्न इत्यादी नकारात्मक बाबीही तेथे निर्माण होऊ शकतात.
क. या वसाहतीमध्ये घरांची रचना ही वर्तुळाकार स्वरूपाची असते.
ड. डोंगराळ भागात, दाट जंगलात आणि वाळवंटी प्रदेश येथे अशा प्रकारची वस्ती आढळते.
वरीलपैकी कोणते विधान /विधाने बरोबर आहे /आहेत ?

The correct answer is Option B (Only a, b and d).

Key Points:
• Status Note: This question was officially Cancelled by MPSC in the final answer key (marked as `#`).
• Geographical Analysis:
• Statement a (True): Compact/clustered settlements are typical in fertile plains (e.g., Indo-Gangetic plain).
• Statement b (True): High density leads to congestion, unsanitary conditions, and social frictions.
• Statement c (False): Compact settlements do not necessarily have circular house layouts; they are built closely in grids, linear, or irregular patterns.
• Statement d (False): Hilly, dense forest, and arid areas feature Dispersed/Dispersal settlements, NOT compact ones.
• Cancellation Reason: Options contained contradictory logic regarding statements c and d versus standard NCERT settlement geography definitions, leading MPSC to cancel it.
• Answer Key: Marked `#` (Cancelled).
• Key Takeaway: Question cancelled by MPSC in the final key due to options discrepancy.