Definition: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: Within the congenital anomalies of the abdominal wall are the omphalocele and gastroschisis. Both entities are defects of the wall. What is the difference between them?
Options: <1> Omphalocele occurs at the umbilical level and gastroschisis at the epigastric level. <2> The defect, in the case of gastroschisis, is larger than the omphalocele. <3> In the omphalocele, a peritoneal sac covers the abdominal contents and not gastroschisis. <4> Omphalocele, unlike gastroschisis, is frequently associated with intestinal atresia. <5> Unlike the omphalocele, in gastroschisis the surgical treatment can be deferred.
Output:
3