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: In relation to the physiology of the complement system, one of the following statements is false: 
 Options:  <1> Most of its components are inactive. <2> Its mode of activation is similar to the coagulation cascade. <3> It is subject to strict control of regulatory mechanisms. <4> It is only activated by two different routes: the classical and the alternative. <5> During its activation, multimolecular complexes are formed.
4

Question: Stimulates the separation of DNA strands during replication: 
 Options:  <1> Primasa <2> DNA ligase. <3> The single chain DNA binding proteins. <4> Helicasa <5> DNA polymerase I.
4

Question: The traceability of an analytical method can be demonstrated: 
 Options:  <1> Carrying out the study of its selectivity. <2> By comparison with a reference method, use of certified reference materials and / or analysis of added samples. <3> Checking that the limit of detection of it is very low. <4> Evaluating the linearity of the calibration, whose most appropriate criterion is the correlation coefficient. <5> Making replicated measurements of the patterns and carrying out the analysis of the variance.

2