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: Stimulates the separation of DNA strands during replication: 
 Options:  <1> Primasa <2> DNA ligase. <3> The single chain DNA binding proteins. <4> Helicasa <5> DNA polymerase I.

Output: 4


Input: Consider Input: Question: Indicate which of the following drugs has antihypertensive action: 
 Options:  <1> Pancuronium <2> Nitroprusside sodium <3> Procainamide <4> Salbutamol <5> Clarithromycin

Output: 2


Input: Consider Input: Question: The reaction conditions for the preparation of 2-methyl-2-methoxypropan-1-ol from 2,2-dimethyloxirane are: 
 Options:  <1> Methanol in acid medium. <2> Lithium aluminum hydride in methanol. <3> Methylmagnesium bromide and subsequent hydrolysis. <4> Sodium methoxide in methanol. <5> Triphenylphosphine in methanol.


Output: 1