The patient has been ordered a regimen to treat a urinary tract infection and notifies the nurse that the patient's urine has turned an orange color. The nurse recognizes that the patient is most likely being treated with which drug?
A. Ciprofloxacin (Cipro)
B. Bethanechol Cl (Urecholine)
C. Darifenacin hydrobromide (Enablex)
D. Phenazopyridine HCl (Pyridium)