Cast is produced due to damage to-
Ans. is 'd' i.e., DCTUrinary casts o Urinary casts are cylindrical aggregations of paiculate matter that form in the distal convoluted tubule or the collecting duct.o They form precipitation of Tam-Horsfall mucoprotein which is secreted by renal tubule cells and sometimes also by albumin in conditions of proteinuria.
Nephron
Tubule
PCT
DCT