Freshly passed urine has hardly any smell but when it is allowed to stand, it develops a strong ammoniacal odour owing to

[ A ] conversion of urea to ammonia via urea cycle
[ B ] conversion of urea to ammonia by bacteria
[ C ] conversion of uric acid, urea and creatinine to ammonia
[ D ] conversion of uric acid and urea to ammonia

Answer : Option D

Explanation :

ssc online