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'.

[Q]: Question: As an immunoanalytical technique, flow cytometry is mainly based on the detection of signals: 
 Options:  <1> Chemiluminescent <2> Fluorescent <3> Bioluminescent <4> Piezoelectric. <5> Magnetic
[A]: 2


[Q]: Question: Reva Rubin identifies maternal behavior after delivery in three stages: 
 Options:  <1> Acceptance, Support and Abandonment. <2> Acceptance, Denial and Encounter. <3> Denial, Affirmation and Dependency. <4> Affirmation, Affirmation and Support. <5> Coping, Dependence and Help.
[A]: 1


[Q]: Question: Regarding COPD, which one is FALSE? 
 Options:  <1> Smoking is the most important factor in the development of COPD. <2> Contrary to asthma, there is no inflammatory component. <3> The genetic factor to develop better documented COPD is the deficit of alpha1 antitrypsin. <4> Acropachies are not characteristic of COPD and their presence should suggest associated bronchiectasis or bronchopulmonary carcinoma. <5> Spirometrically, obstruction is detected by a FEV1 / FVC ratio of less than 0.70.
[A]:
2