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'.

Example Input: Question: Of the antiemetic drugs reviewed, in which of them their pharmacological activity is NOT related to dopaminergic receptors ?: 
 Options:  <1> Granisetron. <2> Cleboprida. <3> Droperidol <4> Tietilperazine. <5> Domperidone
Example Output: 1

Example Input: Question: The process of bacterial sporulation occurs: 
 Options:  <1> Both Gram positive and Gram negative bacteria. <2> After the depletion of certain essential nutrients. <3> When unfavorable environmental factors such as UV light or heat appear. <4> During the exponential growth. <5> By budding of a stem cell.
Example Output: 2

Example Input: Question: The excitatory postsynaptic potentials: 
 Options:  <1> They are all or nothing. <2> They are hyperpolarizing. <3> They can be added. <4> They spread long distances. <5> They present a refractory period.
Example Output:
3