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.
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Question: Question: They are primary lymphoid organs: 
 Options:  <0> Spleen and lymph nodes <1> The spleen and bone marrow. <2> The thymus and the bone marrow. <3> The pineal gland <4> Peyer's plates and tonsils.

Answer: biology


Question: Question: When a person tries to avoid circumstances that increase their stress, exercises relaxation, plans leisure activities and trivializes their illness, it is said that this person is using coping strategies aimed at: 
 Options:  <0> The action. <1> The problem. <2> The omission <3> The emotion. <4> The attention

Answer: nursery


Question: Question: The least effective prevention measure in the appearance of an outbreak of salmonellosis is: 
 Options:  <0> Active immunization to the population at risk. <1> Rigorous and frequent hand washing, as well as utensils and surfaces that will be used for cooking. <2> Keep food in the refrigerator. <3> Cook food with sufficient temperature (at least 70ºC). <4> Quick refrigeration of cooked foods.

Answer:
nursery