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: Consider Input: Question: It is a stop codon for translation: 
 Options:  <1> AUG. <2> UAU <3> UGA <4> UAC. <5> UGU

Output: 3


Input: Consider Input: Question: In the respiratory chain: 
 Options:  <1> Ferrosulfurized proteins contain heme groups. <2> The heme groups are in carotenoids. <3> Cytochromes contain iron and sulfur groups. <4> Ubiquinones transport protons and electrons. <5> All transporters carry two electrons.

Output: 4


Input: Consider Input: Question: Miracidium is a larval phase that is part of the biological cycle of a: 
 Options:  <1> Pediculus <2> Ascaris <3> Oxiuro. <4> Fluke. <5> Phlebotomist


Output: 4