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'.

Example Input: Question: If metallic copper is added to a solution of iron (III) chloride, it produces: 
 Options:  <1> A precipitate of copper (II) chloride. <2> A solution of copper (II) chloride and iron (II) chloride. <3> A precipitate of iron (II) chloride. <4> A precipitate of metallic iron. <5> A solution of copper (I) chloride and iron (II) chloride.
Example Output: 2

Example Input: Question: They are formed by maturation of late endosomes: 
 Options:  <1> Lysosomes <2> Phagosomes <3> Multivesicular bodies. <4> Secretion granules <5> Proteosomes
Example Output: 1

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