Answer:
option c. Urea
Step-by-step explanation:
Composition of normal urine is mostly water salts and other chemicals like uric acid, etc. about 95% of water is present in urine
Urea is one of the component produced in the metabolical activities of amino acid as the waste product of nitrogenous substances substance that is produced by amino acid metabolism.
Significant band high amount of urea in urine is an indicates that the kidneys are not functioning well or are an indication of Kidney failures and implies impairment in glomerular filtration.