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 oxidation of fatty acids in cells of higher plants takes place in: 
 Options:  <1> Endoplasmic reticulum. <2> Chloroplasts <3> Peroxisomes <4> Citosol <5> Mitochondria
