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'.

Q: Question: Urine is hypoosmolar with respect to plasma in: 
 Options:  <1> Bowman's capsule. <2> Proximal tubule <3> Medulla area of ​​the loop of Henle. <4> Initial zone of the distal tubule. <5> Collecting tubule in the presence of ADH.

A: 4
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Q: Question: Amantadine is a drug that can be used as: 
 Options:  <1> Antiviral and antiparkinsonian. <2> Antipsychotic and antiemetic. <3> Anxiolytic and antifungal. <4> Antifungal and antiparkinsonian. <5> Antifungal and anti-migraine.

A: 1
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Q: Question: HPLC (High Efficiency Liquid Chromatography) uses packings with a range of size or particle diameter typical of: 
 Options:  <1> 3-10 Armstrong. <2> 3-10 Nanometers. <3> 3-10 Millimeters. <4> 3-10 Micrometers. <5> 3-10 Centimeters

A:
4
****