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'.

Example Input: Question: In the oxaciclohexane-type conformer of sugar -D - (+) - glucopyranose: 
 Options:  <1> One of the OH- groups is axial, but the remaining substituents are equatorial. <2> The CH2OH group is axial but the remaining groups are equatorial. <3> All groups are axial. <4> All groups are equatorial. <5> The CH2OH group is equatorial but the remaining groups are axial.
Example Output: 4

Example Input: Question: Streptococcus sobrinus and Streptococcus mutants are responsible for: 
 Options:  <1> Dental cavities. <2> Burns infections. <3> Rheumatic fever <4> Atypical rhinitis. <5> Otitis stockings.
Example Output: 1

Example Input: Question: The ketone bodies: 
 Options:  <1> They are used by the liver to synthesize fatty acids. <2> They only form in conditions of good nutrition. <3> Its formation is especially active in skeletal muscle. <4> It is formed from acetyl-CoA. <5> They never give acetone.
Example Output:
4