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: A very important industrial method for the formation of carbon-nitrogen bonds is the transposition of Beckman, a reaction that transforms: 
 Options:  <1> A ketone in a pyridine. <2> An oxime in an amine. <3> An aldehyde in an amide. <4> A ketone in an amide. <5> An oxime in an amide.
