The correct option is B Urochrome
Urine is a transparent, light yellow liquid with a slightly acidic pH (average pH 6.0). The colour of urine is caused by the pigment urochrome, which is a breakdown product of haemoglobin from worn out red blood corpuscles.. Urochrome and the degradation products of bilirubin (urobilin) make urine yellow coloured. Thus, the correct answer is option B.