<prompt> 6 month old baby presents with history of bloody diarrhoea of 2 days duration with abdominal distension and on examination baby screams. What is the most probable diagnosis?IntussusceptionAcute enterocolitisMeckels diverticulumHemolytic Uraemic syndrome  <response>: IntussusceptionShort history of bloody diarrhoea.Extreme tenderness on examination. 