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: The synthesis of membrane phospholipids occurs in: 
 Options:  <1> Citosol <2> Polyribosomes <3> Endoplasmic reticulum. <4> Golgi complex. <5> Peroxisome
