In Testing for Glucose in the Urine,all of the Following

In testing for glucose in the urine,all of the following are true except:

A) if the blood glucose concentration becomes too high (usually greater than 180 to 200 mg/dL) , the excess glucose will not be reabsorbed into the blood and will be eliminated from the body in the urine.
B) the renal threshold is the lowest blood glucose concentration that will result in glycosuria.
C) the most common condition in which the renal threshold for glucose is exceeded is diabetes mellitus.
D) the occurrence of glycosuria is diagnostic of diabetes mellitus.