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: Which of the following administration routes are commonly used for drugs of a peptide and protein nature ?:
Options: <1> Oral. <2> Intravenous, intramuscular and subcutaneous. <3> Oral, intravenous and subcutaneous. <4> Oral, intranasal and inhalation. <5> Oral, intramuscular and intranasal.
Output:
2