In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
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Question: Question: The classical pathway of complement is activated in response to: 
 Options:  <1> Antigen-antibody complexes. <2> Direct binding of C3b to bacterial walls. <3> Microbial glycolipids. <4> Properdin <5> The C-reactive protein.

Answer: 1


Question: Question: A study is being conducted in a health center to determine the effect of exposure to tobacco smoke in children of smoking parents. For this purpose, a group of healthy children between 3 and 7 years old whose parents are smokers is selected and at the same time an equal number of children whose parents are non-smokers are selected in the same center. A year later, the appearance of respiratory diseases during that year will be investigated in both groups. Indicate the correct answer: 
 Options:  <1> The study design is a prospective cohort. <2> The study design is cases and controls. <3> The study design follows a qualitative methodology. <4> The study is experimental. <5> The type of design used is efficient to study rare diseases.

Answer: 1


Question: Question: One of the following elements of cognitive-behavioral therapy for panic disorder (or panic disorder) has been especially questioned and its utility has been minimized. Indicate which: 
 Options:  <1> Interoceptive exposure. <2> Education. <3> Live exhibition. <4> Training in breathing. <5> Cognitive restructuring.

Answer:
4