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: With which of the following parameters is the concept of frailty identified in older people? 
 Options:  <1> Lower physiological reserve. <2> Dependence. <3> Advanced age. <4> Polypharmacy <5> Inability.
[EX A]: 1

[EX Q]: 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
[EX A]: 5

[EX Q]: Question: What measure defines the frequency of lung cancer among people who smoke 20 cigarettes a day compared to those who do not smoke ?: 
 Options:  <1> Accumulated incidence. <2> Incidence density. <3> Relative risk. <4> Attributable risk. <5> Etiological risk fraction.
[EX A]:
3