Definition: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Input: Question: The non-protein molecules that bind to the protein part of the enzyme constitute the complete enzyme are called:
Options: <0> Cofactors <1> Metallic ions <2> Coenzymes. <3> Vitamins <4> Prosthetic groups.
Output:
chemistry