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 vector of tularemia is a / a: 
 Options:  <1> Coleoptera. <2> Louse. <3> Flea. <4> Tick. <5> Mosquito.
