Given the task definition, example input & output, solve the new input case.
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.
Example: Question: A distension is defined as:
Options: <0> Soft tissue injury. <1> Forced movement of abrupt production. <2> Injury by stretching a muscle. <3> Injury of the joint capsule. <4> Interruption in the continuity of a bone.
Output: nursery
Distension means Bloating and swelling in the belly area. It does not have much to do with chemistry, psychology, pharmacology, biology and medicine. Hence, the correct topic is nursery.

New input case for you: Question: A particle charged in solution moves when it is placed in an electric field. The speed acquired by the solute under the influence of the applied voltage is the product of the apparent mobility of the solute and the applied field. With regard to this mobility, it can be stated that:
Options: <0> A neutral particle of small size will have a smaller mobility than a neutral one of large size. <1> A macromolecular polymer will have greater mobility than the corresponding monomer. <2> A large particle with a small charge will have great mobility. <3> A small particle of great load will have great mobility. <4> A charged micelle will have less mobility than another micelle of the same size but neutral.
Output:
chemistry