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: The effect of anti-D gammaglobulin given to Rh negative women who have developed an Rh positive fetus is: 
 Options:  <0> Eliminate fetal red blood cells from maternal blood. <1> Destroy the antigens formed by the mother's immune system. <2> Avoid the formation of anti-Rh negative antibodies. <3> Induce the formation of maternal antibodies against fetal antigen. <4> Provide the woman with permanent active immunity.
nursery

Question: The reactivity of various carbonyl groups is determined by their relative stability. The order of reactivity towards nucleophiles is: 
 Options:  <0> Amides> Esters> Ketones> Aldehydes. <1> Aldehydes> Ketones> Esters> Amides. <2> Amides> Ketones> Aldehydes> Esters. <3> Aldehydes> Esters> Ketones> Amides. <4> Amides> Ketones> Esters> Aldehydes.
chemistry

Question: In what phase or phases of the dream are the night terrors ?: 
 Options:  <0> In the phases of deep slow sleep (phases 3 and 4). <1> In phase 2 <2> In REM sleep. <3> In phase 1 <4> They can occur indistinctly at any stage of the dream.

psychology