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: Which were the first authors who investigated the role that stressful life events could have on health ?: 
 Options:  <1> Mechanic <2> Matarazzo <3> Zola <4> Lazarus <5> Holmes and Rahe.
