Parents of a child undergoing an endoscopy to rule out peptic ulcer disease (PUD) from H. pylori ask the nurse, "If H. pylori is found, will my child need another endoscopy to know that it is gone?" Which is the nurse's best response?

A) "Yes, the only way to know the H. pylori has been eradicated is with another endoscopy."
B) "We can collect a stool sample and confirm that the H. pylori has been eradicated."
C) "A blood test can be done to determine that the H. pylori is no longer present."
D) "Your child will always test positive for H. pylori because after treatment it goes into remission but can't be completely eradicated."