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 Q]: Question: From a microbial growth control point of view, it can be stated that: 
 Options:  <1> Pasteurization is a method of sterilization for liquid substances. <2> The overpressure is what kills the microorganisms when the autoclave is used. <3> Antiseptic agents are applied to living tissues. <4> The autoclave is the recommended method for sterilizing thermosensitive liquids. <5> The use of ultraviolet radiation is due to its high penetration power.
[EX A]: 3

[EX Q]: Question: The only autonomic adrenergic fibers are axons of neurons: 
 Options:  <1> Sympathetic preganglions. <2> Postganglionic sympathetics. <3> Preganglionic parasympathetic. <4> Postganglionic parasympathetic. <5> Parasympathetic ganglion.
[EX A]: 2

[EX Q]: Question: About free radicals: 
 Options:  <1> They are compounds that contain two or three unpaired electrons in an outer orbital. <2> Reactive oxygen species (ROS) in the cell are only generated enzymatically. <3> Hydrogen peroxide is the most damaging radical in the cell. <4> The hydroxyl radical originates non-enzymatically (Heber-Weiss reaction) and damages proteins and DNA. <5> Oxygen is a triradical.
[EX A]:
4