The Nurse Is Documenting the Assessment of an Infant

The nurse is documenting the assessment of an infant.During the abdominal assessment,the nurse notes a very loud splash auscultating over the upper abdomen when the nurse rocks her from side to side.This finding would indicate:
(This question reflects the results an examiner may find during a complete physical examination.Content in this question is not necessarily addressed directly in Jarvis' Physical Examination & Health Assessment. )

A) epigastric hernia.
B) pyloric obstruction.
C) hypoactive bowel sounds.
D) hyperactive bowel sounds.