text: Etiology is demonstrated best by abdominal<unk>  scan.
option_0: Increased bowel sounds CT
option_1: Increased bowel sounds x ray
option_2: Abdominal pain x ray
option_3: Malabsorption abdominal x ray
option_4: Volvulus x ray
option_5: Short bowel syndrome x ray
option_6: Constipation abdominal x ray
option_7: Toxic megacolon abdominal x ray