instruction:
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'.
question:
Question: Sulfasalazine is used for the treatment of ulcerative colitis. It is a prodrug of 5-aminosalicylic acid that is activated by a process of: 
 Options:  <1> Hydrolysis of an ester. <2> Hydrolysis of an amide. <3> Oxidative dealkylation. <4> Reducing rupture of the azoderivative. <5> Aromatic hydroxylation.
answer:
4


question:
Question: Gallium is the element that is under the aluminum in group 13 of the periodic table. Thus: 
 Options:  <1> It burns in oxygen giving Ga2O. <2> It is stable to air due to a protective oxide layer. <3> It dissolves very quickly in nitric acid. <4> It is not soluble in basic water with hydrogen evolution. <5> It has a melting point a little higher than aluminum.
answer:
2


question:
Question: Is the goal of focusing techniques for the treatment of auditory hallucinations? 
 Options:  <1> That patients are distracted from hallucinations. <2> That patients gradually rearrange the origin of auditory hallucinations to themselves. <3> That patients do not listen to voices. <4> That patients with hallucinations take medication. <5> That patients do not think about hallucinations.
answer:

2