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: A basic component of spectrophotometers is the monochromator. Its function is:
Options: <1> Connect the different wavelengths from the source to achieve greater light power. <2> Transform the optical signal measured by the detector into an electrical signal. <3> Disperse the light separating the wavelengths that compose it and select a narrow band. <4> Amplify the analytical signal by improving the signal-to-noise ratio. <5> Decrease the power of the light beam to eliminate the background noise of the spectrophotometer.

Ex Output:
3

Ex Input:
Question: Free samples of industrially manufactured medicines are considered exceptional publicity; as such, they will only be delivered during a maximum time of:
Options: <1> One year from the date of authorization of the medication. <2> Five years from the date of authorization of the medication. <3> Six months from the date of authorization of the medication. <4> Two years from the date of authorization of the medication. <5> One month from the date of authorization of the medication.

Ex Output:
4

Ex Input:
Question: In the regulation of glycogen metabolism by adrenaline:
Options: <1> Adenylate cyclase is inhibited. <2> Protein kinase A is inhibited through cAMP. <3> Glycogen synthetase is inhibited by phosphorylation. <4> Glycogen phosphorylase is inhibited by phosphorylation. <5> The main enzyme that carries it out is protein kinase C.

Ex Output:
3