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 glands are located between the skin and the masseter muscle, in front and under the outer ear?
Options: <0> Parotid glands <1> Submandibular glands <2> Sublingual glands <3> Mouth glands <4> Lieberkuhn's glands.
pharmacology

Question: Esters can be obtained from carboxylic acids and alcohols, by applying the Fischer esterification reaction in which:
Options: <0> A base is used as a catalyst. <1> A ketone is used as the solvent. <2> A reducing reagent is used. <3> An oxidizing agent is used. <4> Acid catalysis is used.
pharmacology

Question: What speed of perfusion of a drug should you administer to achieve a plasma equilibrium concentration of 10 mg / L knowing that it has a plasma clearance of 500 mL / h? (continuous perfusion):
Options: <0> 50 mg / h. <1> 5 mL / h. <2> 100 mg / h. <3> 100 mg / mL. <4> 5 mg / h.
pharmacology