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'.

Input: Consider Input: Question: Which of the following anti-infectives is a reversible inhibitor of monoamine oxidase that can lead to interactions with antidepressants that increase serotonin? 
 Options:  <1> Neomycin. <2> Teicoplanin <3> Linezolid. <4> Clindamycin <5> Meropenem.

Output: 3


Input: Consider Input: Question: Pyruvate carboxylase is allosterically activated by one of the following compounds, what is it? 
 Options:  <1> Pyruvate. <2> Acetyl-CoA. <3> Malate. <4> Oxalacetate. <5> NAD +.

Output: 2


Input: Consider Input: Question: Which of the following conditions causes a decrease in the O2 saturation of the hemoglobin that is not due to a decrease in the partial pressure of oxygen? 
 Options:  <1> Ventilation-perfusion ratio lower than normal. <2> Anemia. <3> Carbon monoxide poisoning. <4> Hypoventilation. <5> Shunt venoarterial.


Output: 3