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: At what stage is the person when they begin to balance the positive and negative consequences of drug use and, as a result, begin to consider stopping consumption, but basically maintain their ambivalence in this decisional balance? 
 Options:  <1> Stadium of action. <2> Contemplation stadium. <3> Relapse stadium. <4> Pre-contemplation stadium. <5> Post-relapse stadium.

Ex Output:
2


Ex Input:
Question: The standard free energy of activation of a reaction is: 
 Options:  <1> The difference in free energy between the basal state of the products and the substrates. <2> The difference of the enthalpy minus the entropy of the system. <3> The basal energy of the substrates in a catalyzed reaction. <4> The additional free energy that molecules must reach to reach the state of transition. <5> The energy released from a catalysed reaction.

Ex Output:
4


Ex Input:
Question: The CD40 ligand molecule (CD40L or CD154) is expressed in: 
 Options:  <1> Virgin T lymphocytes. <2> Activated T lymphocytes <3> NK lymphocytes. <4> Virgin B lymphocytes. <5> B activated lymphocytes.

Ex Output:

2