Definition: 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: The main virulence factor of Streptococcus pneumoniae is one (one): 
 Options:  <1> Fímbria. <2> Capsule. <3> Scourge <4> Endotoxin <5> Adhesin
