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 local anesthetic procaine is a drug designed by pharmacodynamics of the: 
 Options:  <1> Morphine. <2> Melatonin <3> Tetracycline <4> Cocaine. <5> Noradrenaline
