The correct answer is: D. a-1, b-2, c-4, d-3
Tretanath Tiwari was imprisoned in Malkapur. Raghunandan Pd. Singhrol was imprisoned in Raipur. Amar Singh Sangal Sahgal was imprisoned in Bilaspur. Pt. Ravishankar Shukla was imprisoned in Durg.
Here is a brief explanation of each option:
Option A: a-4, b-1, c-3, d-2
This option is incorrect because Tretanath Tiwari was imprisoned in Malkapur, not Raipur.
Option B: a-4, b-2, c-1, d-3
This option is incorrect because Raghunandan Pd. Singhrol was imprisoned in Raipur, not Malkapur.
Option C: a-3, b-4, c-2, d-1
This option is incorrect because Amar Singh Sangal Sahgal was imprisoned in Bilaspur, not Malkapur.
Option D: a-1, b-2, c-4, d-3
This option is correct because Tretanath Tiwari was imprisoned in Malkapur, Raghunandan Pd. Singhrol was imprisoned in Raipur, Amar Singh Sangal Sahgal was imprisoned in Bilaspur, and Pt. Ravishankar Shukla was imprisoned in Durg.