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 patient with peripheral occlusive arteriopathy who presents intermittent claudication will be recommended:
Options: <1> Absolute rest to reduce the demands of O2. <2> Elevate the legs to reduce pain. <3> Apply dry heat to the legs to promote vasodilation. <4> Walk on flat surfaces. <5> Use gradual compression stockings.

Ex Output:
4

Ex Input:
Question: A lack of interest in carrying out sexual relations or behavior in general is, more properly:
Options: <1> Sexual aversion <2> Lack of sexual desire or inhibited sexual desire. <3> Impotence or anorgasmia. <4> Excitation disorder. <5> Orgasmic dysfunction

Ex Output:
2

Ex Input:
Question: The active center of an enzyme:
Options: <1> It is formed by functional groups that come from the central amino acid sequence of the enzyme. <2> It constitutes a large part of the total volume of the enzyme. <3> Increases the G of a reaction, increasing the speed of it. <4> It has a high amount of water molecules together with amino acids. <5> It is the region that joins the substrates and contains the waste that participates in the formation and breaking of links.

Ex Output:
5