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: Indicate which of the following statements is true about bilirubin: 
 Options:  <1> It is a catabolic product of the heme group. <2> It is a product of the urea cycle. <3> It is an intermediary of the Krebs cycle. <4> It is a precursor of hepatic gluconeogenesis. <5> It is a product of cholesterol degradation.

Output: 1


Input: Consider Input: Question: The following are zoonotic: 
 Options:  <1> Rotavirus. <2> Paramyxovirus. <3> Cytomegalovirus. <4> Arenavirus. <5> Parvovirus.

Output: 4


Input: Consider Input: Question: According to the Theory of Multiple Intelligences, intrapersonal intelligence: 
 Options:  <1> It has been preponderant in our current system of academic evaluation. <2> It is the ability to understand and interact with others. <3> It focuses on the potential to form a mental model of a spatial world. <4> It is the ability to form an adjusted model of oneself and to use it effectively in life. <5> It is exhibited when it comes to making products that need to use the body.


Output: 4