1. Renal calculi are Stone or insoluble mass of crystallised salts (oxalates, etc.) formed within the kidney. 2. Glomerulonephritis is Inflammation of glomeruli of kidney. Regarding 1 and 2 :

Question

( A ) Both are correct
( B ) Both are incorrect
( C ) 1 is correct but 2 is incorrect
( D ) 1 is incorrect but 2 is correct