To Relieve the Symptoms of a Lower UTI for Which

To relieve the symptoms of a lower UTI for which the patient is taking prescribed antibiotics, the nurse suggests that the patient use the OTC urinary analgesic phenazopyridine (Pyridium) but cautions the patient that this preparation

A) contains methylene blue, which turns the urine blue or green.
B) should be taken on an empty stomach for maximum effect.
C) causes the urine to turn reddish orange and can stain underclothing.
D) frequently causes allergic reactions and should be stopped if a rash occurs.