The Nurse Is Listening to Bowel Sounds

The nurse is listening to bowel sounds.Which of these statements is true of bowel sounds?

A) They are usually loud, high-pitched, rushing, tinkling sounds.
B) They are usually high-pitched, gurgling, irregular sounds.
C) They sound like two pieces of leather being rubbed together.
D) They originate from the movement of air and fluid through the large intestine.