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: Friedel-Crafts alkylation reactions lead to products that:
Options: <1> They facilitate diazotization reactions. <2> They facilitate the reactions of formation of ethers. <3> Activate the aromatic ring against other substitutions. <4> They deactivate the aromatic ring against other substitutions. <5> None of the above.
3

Question: With regard to pyrogens and biotechnological medicines, it is possible to say:
Options: <1> They have no tendency to aggregate or form large units with high molecular weight. <2> Ion exchange chromatography procedures (using their positive charge) can reduce endotoxin levels. <3> Ion exchange chromatography procedures (using their negative charge) can reduce endotoxin levels. <4> Ion exchange chromatography procedures (regardless of their charge) can reduce endotoxin levels. <5> They are unstable under standard autoclaving conditions.
3

Question: Mycobacterium tuberculosis complex includes the bacillus that causes human tuberculosis (Mycobacterium tuberculosis hominis, Koch's bacillus), as well as other mycobacteria, among which are the following, except one:
Options: <1> Mycobacterium bovis. <2> Mycobacterium africanum. <3> Bacillus Calmette-Guerin (BCG). <4> Mycobacterium microti. <5> Mycobacterium avium-intracellulare.
5