Task: Question Answering
Input (English): 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 (English): 2