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 Input: Question: The antibiotic tetracycline: 
 Options:  <0> It binds to the 30S subunit and inhibits the binding of aminoacyl-tRNA. <1> Inhibits the peptidyltransferase activity of the 50S ribosomal subunit. <2> It binds to the 50S ribosomal subunit and inhibits translocation. <3> It inhibits the initiation and originates an erroneous reading of the mRNA. <4> It causes premature termination by acting as an analog of the aminoacyl-tRNA.
Example Output: pharmacology

Example Input: Question: A basic component of spectrophotometers is the monochromator. Its function is: 
 Options:  <0> Connect the different wavelengths from the source to achieve greater light power. <1> Transform the optical signal measured by the detector into an electrical signal. <2> Disperse the light separating the wavelengths that compose it and select a narrow band. <3> Amplify the analytical signal by improving the signal-to-noise ratio. <4> Decrease the power of the light beam to eliminate the background noise of the spectrophotometer.
Example Output: chemistry

Example Input: Question: Linear sweep voltammetry is characterized by: 
 Options:  <0> To be a technique based on a stationary diffusion regime. <1> To be a voltammetric technique based on a pure diffusion regime. <2> Use a rotating electrode as working electrode. <3> Use a hanging drop electrode as the working electrode. <4> Have an electrode preconcentration stage.
Example Output:
chemistry