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 of these compounds directly donates the 2nd amino group to the urea cycle? 
 Options:  <1> Aspartic. <2> Glutamic <3> Glutamine <4> Glycine <5> Ornithine
