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: Which of the following statements is true with respect to the alkaloid morphine ?: 
 Options:  <1> It is an isoquinoline alkaloid extracted from straw of Papaver somniferum. <2> It is a benzylisoquinol alkaloid extracted from latex of Papaver somniferum. <3> It is a tracheal alkaloid extracted from leaves of Papaver somniferum. <4> It is a quinolizidine alkaloid extracted from capsules of Papaver somniferum. <5> It is a pyrrolidinic alkaloid extracted from roots of Papaver somniferum.

Ex Output:
2


Ex Input:
Question: In the respiratory chain: 
 Options:  <1> Ferrosulfurized proteins contain heme groups. <2> The heme groups are in carotenoids. <3> Cytochromes contain iron and sulfur groups. <4> Ubiquinones transport protons and electrons. <5> All transporters carry two electrons.

Ex Output:
4


Ex Input:
Question: An amine, due to the pair of non-bonding electrons that nitrogen possesses: 
 Options:  <1> It can be considered as an electrophile. <2> It can be considered as a Lewis acid. <3> It can act as a nucleophilic reagent attack center. <4> It can be considered as a nucleophile. <5> It is an example of apolar product.

Ex Output:

4