You will be given a definition of a task first, then some input of the task.
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: Which of the following statements regarding the double-stranded DNA molecule is true?
Options: <0> All the hydroxyl groups of the pentoses participate in the bonds. <1> The bases are perpendicular to the axis. <2> Each chain is identical. <3> Each chain is parallel. <4> Each chain replicates itself.
Output:
chemistry