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'.

Example Input: Question: In the technique of atomic absorption spectrometry, the use of an electrothermal atomizer instead of the flame provides:
Options: <1> Greater accuracy <2> Greater precision. <3> Greater sample consumption <4> Longer analysis times. <5> Greater sensitivity
Example Output: 5

Example Input: 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.
Example Output: 4

Example Input: Question: Which of the following sequences is added during the maturation or processing of the eukaryotic transfer RNA ?:
Options: <1> Splicing site 5 'of the intron. <2> CCA sequence of amino acid charge. <3> Anticodon <4> 3 'splicing site of the intron. <5> Leading sequence of the 5 'end.
Example Output:
2