Instructions: 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: They synthesize a single polyprotein precursor of all the proteins necessary for the rest of the multiplication cycle:
Options: <1> Coronavirus. <2> Picornavirus <3> Rotavirus. <4> Paramyxovirus. <5> Calcivirus.
Output:
2