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: Separations by capillary zone electropheresis (CZE) are characterized in that the electrophoretic medium: 
 Options:  <0> It is always formed by 1.0 M HCl. <1> It is always formed by NH3 1.0 M. <2> It is homogeneous throughout the capillary. <3> It is not homogeneous throughout the capillary. <4> It has a pH gradient throughout the entire capillary.
chemistry

Question: A 24-year-old boy who, after 3 days of high-risk sexual contact, has numerous pustular, small, very pruritic lesions that progress to minute erosions affecting the entire glans and inner face of the prepuce. Indicate which is, among the following, the most probable diagnostic orientation: 
 Options:  <0> Genital candidiasis <1> Chancroid. <2> Secondary syphilis <3> Balanitis by Trichomonas. <4> Fungal infection by dermatophytes.
medicine

Question: The glomerular filtration rate increases when: 
 Options:  <0> Increases the resistance in the glomerular afferent arteriole. <1> Decreases the resistance in the glomerular efferent arteriole. <2> Increases the activity of the renal sympathetic nerves. <3> Obstruction of the urinary tract occurs. <4> Decreases the concentration of plasma proteins.

medicine