Tracey Has Been Experiencing a Fever and a Feeling That

Multiple Choice

Tracey has been experiencing a fever and a feeling that she needs to urinate every few minutes,even though she has a very low urine volume.She goes to her doctor who tells her that she has a bacterial infection of her bladder.An ultrasound of her ureters indicates that there is no infection in the ureters.Where did the infection begin?

A) Her urethra
B) Her nephrons
C) Her renal arteries
D) Her renal pelvis
E) None of these sites