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: What WISC IV tests are part of the perceptual reasoning index ?: 
 Options:  <1> Search for symbols, cubes and digits. <2> Matrices, cubes and concepts. <3> Search for symbols, letters and numbers, and concepts. <4> Matrices, keys and concepts. <5> Cubes, letters and numbers, and concepts.
2

Question: An isolated carbon atom is: 
 Options:  <1> Diamagnetic <2> Ferromagnetic. <3> Paramagnetic, with an unpaired electron. <4> Paramagnetic, with two unpaired electrons. <5> Paramagnetic, with three unpaired electrons.
4

Question: Acetylsalicylic acid is a compound whose pKa is 3.5. What percentage of a dose of this product can be absorbed in the stomach fasting (pH 1.5)? 
 Options:  <1> Less than 10% <2> Between 10% and 20%. <3> More than 90% <4> Between 20% and 40%. <5> 50%

3