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'.

Ex Input:
Question: The access of drugs to the central Nervous System is conditioned by the existence of the blood-brain barrier (BHE) barrier: 
 Options:  <1> Increases its permeability in case of inflammation. <2> It is homogeneous throughout the encephalon. <3> It is traversed freely by fat-soluble drugs. <4> It is maximum in the chemoreceptor area of ​​the trigger. <5> Decreases its permeability in case of inflammation.

Ex Output:
1


Ex Input:
Question: What is the maximum volume of air that a subject can breathe out after maximum inspiration ?: 
 Options:  <1> Total lung capacity. <2> Expiratory reserve volume. <3> Inspiratory capacity <4> Vital capacity <5> Residual volume

Ex Output:
4


Ex Input:
Question: If an animal organism has deficiencies in the path of pentose phosphate: 
 Options:  <1> There would be an excess of activity of the enzyme glutathione reductase. <2> The pentose phosphate would be integrated into the glycolytic pathway. <3> NADH would be used to replace NADPH. <4> It would stimulate the synthesis of fatty acids in adipose tissue. <5> The concentration of NADPH would decrease.

Ex Output:

5