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 Input:
Question: Except in patients whose chronic renal failure is due to diabetic nephropathy or tubulointerstitial nephropathy, the arterial blood gas pattern that you would expect to find in a patient with chronic renal failure would be: 
 Options:  <1> pH 7.30, HCO3 18 mEq / L, Cl 116 mg / dL, because metabolic acidosis with normal anion gap is characteristic. <2> pH 7.46, HCO3 18 mEq / L, Cl 116 mg / dL, because hyperchloremic metabolic alkalosis is characteristic. <3> pH 7.456, HCO3 18 mEq / L, Cl 100 mg / dL, because metabolic acidosis with increased anion gap is characteristic. <4> pH 7.46, HCO3 30 mEq / L, Cl 90 mg / dL, because metabolic alkalosis with normal anion gap is characteristic. <5> pH 7.45, HCO3 23 mEq / L, Cl 100 mg / dL, because metabolic alkalosis with normal anion gap is characteristic.

Ex Output:
3


Ex Input:
Question: For what purpose do Clark and Beck (2010) propose, within the cognitive therapy of anxiety disorders, the exercises of induction of symptoms in the treatment of panic disorder ?: 
 Options:  <1> To provoke the integration of the reflective processes of higher level of cognitive processing. <2> To create opportunities to challenge the catastrophic misinterpretations of bodily sensations. <3> To facilitate the use of self-guided meditation. <4> To generate new security search behaviors. <5> The induction of symptoms is not contemplated in the model of cognitive anxiety therapy.

Ex Output:
2


Ex Input:
Question: The main vessels that regulate blood flow are: 
 Options:  <1> Arteries <2> Arterioles <3> Capillaries <4> Venules <5> Veins.

Ex Output:

2