You do NOT have a pair of which of the following organs?

A. Lungs (plural)
B. Ureters (plural)
C. *Urinary bladder (singular and we have only one of these)
D. Kidneys (plural)

how did this question possibly violate any guidelines?
lets see if this question stays put this time.
Quiz let is better

You do NOT have a pair of which of the following organs A Lungs plural B Ureters plural C Urinary bladder singular and we have only one of these D Kidneys plura class=