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 Q]: Question: The main pharmacological treatment for obsessive-compulsive disorder or OCD is: 
 Options:  <1> Dopamine agonists. <2> NMDA receptor blockers. <3> Inhibitors of monoamine oxidase or MAOIs. <4> Selective serotonin or 5-HT reuptake inhibitors. <5> Neuroleptics
[EX A]: 4

[EX Q]: Question: To multiply, the rhabdoviruses enter the host cell by: 
 Options:  <1> Viropexy <2> Endocytosis <3> Depopolimerization of the virion as a consequence of the interaction with the cellular receptor. <4> Direct translocation <5> Opsonic phagocytosis.
[EX A]: 2

[EX Q]: Question: Could a glass electrode be used as a reference electrode ?: 
 Options:  <1> Yes, if the glass electrode is a combined electrode. <2> Yes, if a mercury electrode is used as the indicator electrode. <3> No, since the glass electrode is a selective electrode. <4> No, because its foundation is not Nerstian. <5> Yes, if the determination is made in a buffered medium.
[EX A]:
5