TASK DEFINITION: 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'.
PROBLEM: Question: In what type of hearing loss is the phenomenon of recruitment or recruitment characteristic? 
 Options:  <1> Transmission hearing loss. <2> Mixed hearing loss. <3> Central hearing loss. <4> Retrocochlear hearing loss. <5> Cochlear hearing loss.

SOLUTION: 5

PROBLEM: Question: Voltammetry of anodic redissolution: 
 Options:  <1> It is always carried out with mercury film electrodes. <2> It uses an oxidation process with chemical agents. <3> It is based on the formation of mercury salts in the electrode. <4> It does not need background electrolyte. <5> It has an electrodeposition stage.

SOLUTION: 5

PROBLEM: Question: The organometallic react with the nitriles giving: 
 Options:  <1> Amino acids. <2> Lactones. <3> Alcohols <4> Ketones <5> None of the above.

SOLUTION:
4