False statement about duodenal atresia is

OPTION 1 : Correct Duodenum is M/C site of intestinal atresia . Duodenal atresia is M/C cause of neonatal intestinal obstruction . OPTION 2 : Incorrect Type 1 - Mucosal web (windsock deformity) Type 2 - Two ends are separated by fibrous cord . Type 3 - Complete separation of two ends . OPTION 3 : Correct Vomiting is bilious as obstruction is distal to ampulla of vater . OPTION 4 : Correct Double Bubble sign is seen in :- Annular Pancreas / Duodenal atresia