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.

Ex Input:
Question: Which compound acts as a sulfhydryl buffer and as an antioxidant? 
 Options:  <0> Glycogen <1> Glutamic acid. <2> Glucagon. <3> Glutathione <4> Ascorbic acid.

Ex Output:
chemistry


Ex Input:
Question: The negative feedback regulation of thyroid hormone is as follows: 
 Options:  <0> High concentrations of circulating free T3 and T4 that elevate HRT. <1> High concentrations of circulating free T3 and T4 that raise TSH. <2> High concentrations of circulating free T3 and T4 that decrease TRH. <3> Decreased TRH that elevates TSH. <4> Decreased TSH that elevates HRT.

Ex Output:
nursery


Ex Input:
Question: The use of monolithic columns and continuous beds in liquid chromatography is already very common. To this end: 
 Options:  <0> Microporous membranes are used so that the interaction between a solute and the matrix takes place in the final part of the pore. <1> A separation medium is introduced with a greater degree of continuity than the stationary particle phase so that the mobile phase is forced to traverse the large pores of the medium, improving mass transport. <2> Monodisperse particles are used as a stationary phase in order to improve mass transfer. <3> Flexible organic gels are used from microporous polymers in order to decrease the flow rates. <4> Columns filled with small particles of polymerized silica are used.

Ex Output:

chemistry