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 presence of foreign bodies such as small buttons, sunflower seeds, etc., in the respiratory tract in young children is a relatively frequent accident. Point out the signs that appear when these objects are lodged in the lower respiratory tract:
Options: <0> Episodes of cough, hoarseness and dyspnea. <1> Chronic cough, hypoventilation on auscultation, signs of infection. <2> Asphyxia, dyspnea, cyanosis, respiratory failure. <3> Fever, cough and dysphonia. <4> Tachypnea, increased respiratory effort.
nursery