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.

Question: A person who presents with urine a high [Urea], possibly leads a diet:
Options: <0> Very low in carbohydrates and very high in proteins. <1> Very high in fat and low in protein. <2> Balanced except in carbohydrates. <3> Moderate in carbohydrates and balanced in fats and proteins. <4> Very high in carbohydrates and very low in protein.
chemistry