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: Echinocandins are antifungal compounds that act by inhibiting: 
 Options:  <1> The synthesis of ergosterol. <2> The synthesis of the cell wall. <3> The synthesis of DNA. <4> The synthesis of proteins. <5> The formation of microtubules.
