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'.

Input: Consider Input: Question: The reaction of cyclopentene with an aqueous solution of bromine at 0 ° C originates: 
 Options:  <1> trans-1,2-dibromocyclopentane. <2> cis-2-bromocyclopentanol. <3> trans -2-bromocyclopentanol. <4> trans -1,2-cyclopentanediol. <5> cis-1,2-dibromocyclopentane.

Output: 3


Input: Consider Input: Question: Legionella pneumophila is transmitted by: 
 Options:  <1> Air conditioning systems. <2> Contact between individuals. <3> Mosquito bite. <4> Contaminated food. <5> Fecal-oral route.

Output: 1


Input: Consider Input: Question: It is completely oxidized in the citric acid cycle: 
 Options:  <1> -ketoglutarate. <2> Succinate <3> Citrate. <4> Acetyl-CoA. <5> Oxalacetate.


Output: 4