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: Iron deficiency anemia is treated with oral or parenteral preparations: 
 Options:  <0> Only ferrous salts should be used orally. <1> Only ferric salts should be used orally. <2> Orally, the most appropriate form is the iron-dextran complex. <3> Orally, the treatment should last a maximum of fifteen days. <4> Only ferrous salts should be used parenterally.
pharmacology

Question: The eggs are operculated: 
 Options:  <0> Hymenolepis nana. <1> Trichinella spiralis. <2> Enterobius vermicularis. <3> Fasciola hepatica. <4> Ascaris lumbricoides.
biology

Question: P. C. is a terminally ill patient with oral mucositis and pain, although he retains the ability to eat a solid diet. Which of the following actions would be indicated? 
 Options:  <0> Encourage him to suck pineapple chips. <1> Rinse the mouth with ¾ parts of 0.9% saline and ¼ part of oxygenated water. <2> Make gargles with nystatin alternating with chlorhexidine. <3> Administer viscous lidocaine 2% before meals. <4> Provide a tremix diet.

nursery