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.
Q: Question: According to the N-terminal end rule, the N-terminal residue of a protein determines:
Options: <0> Its folding rate. <1> Its intracellular concentration. <2> Its intracellular location. <3> Your average life <4> Your translation rate
A:
chemistry